26-Attachment S - Plans Drawings.pdf

PDF 39 MB Posted Nov 7, 2025

Attached to: ITB - Construction of the Brookglen Stormwater Detention Basin for Harris County Flood Control District (CDBG-DR/GLO)
Solicitation number: 25/0353
Issued by: Harris County, Texas

About this file

Written by GovTribe AI · Nov 7, 2025

This document is a comprehensive set of engineering and design plans for the Brookglen Stormwater Detention Basin Phase 2 project, prepared by AECOM Technical Services for the Harris County Flood Control District (HCFCD). The project is located in La Porte, Texas, and is funded through multiple sources including TX-GLO CDBG-DR Contract and US-HUD CDBG-DR Contracts. The plans, dated October 9, 2025, cover 73 detailed sheets including site layouts, survey maps, construction details, traffic control plans, landscape and planting specifications, and soil boring profiles. The project involves constructing a stormwater detention basin spanning approximately 8.18 acres, with multiple compartments and associated infrastructure including spillways, water and sanitary sewer systems, and access routes.

The project is budgeted at $3,627,145 and involves complex engineering specifications including specific requirements for soil stabilization, concrete work, utility installations, and environmental considerations. The design incorporates multiple technical elements such as floatable collection structures, channel lining details, and specific provisions for tree removal and preservation. Funding sources include Community Development Block Grant - Disaster Recovery (CDBG-DR) programs from both the Texas General Land Office (GLO) and the U.S. Department of Housing and Urban Development (HUD), with specific contract identifications noted. The project is located in Harris County Precinct 2 and involves careful environmental and infrastructure planning to manage stormwater in the Brookglen area.

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Other files

File	Type	Posted
25-Attachment U - Project Manual.pdf	PDF	Nov 7, 2025
10-Attachment W - GLO Compliance Package.pdf	PDF	Nov 7, 2025
3-Attachment D - Statement of Bidder Qualifications.pdf	PDF	Nov 7, 2025
22-Attachment M - Minimum Insurance Requirements.pdf	PDF	Nov 7, 2025
16-Attachment G - Contractor Profile.pdf	PDF	Nov 7, 2025
15-Attachment DD – MWBE Trucking Procedure Compliance Packet.pdf	PDF	Nov 7, 2025
13-Attachment CC – MWBE Utilization Plan Commitment Form.pdf	PDF	Nov 7, 2025
11-Attachment Y - Pre-Award Risk Questionnaire.pdf	PDF	Nov 7, 2025
6-Attachment K - Payment Bond.pdf	PDF	Nov 7, 2025
12-Attachment FF - Heat Protection Safety Requirements.pdf	PDF	Nov 7, 2025
19-Attachment Z - Harris County Minimum Wage Policy and Certification.pdf	PDF	Nov 7, 2025
8-Attachment H - Bid Bond Confirmation and Bid Check Authorization Form.pdf	PDF	Nov 7, 2025
2-Attachment C - Certification Regarding Lobbying.pdf	PDF	Nov 7, 2025
27-Attachment V - Project Signs - Plaques.pdf	PDF	Nov 7, 2025
24-Attachment P - Required Contract Provisions.pdf	PDF	Nov 7, 2025
18-Attachment A - Bid Addenda Acknowledgement.pdf	PDF	Nov 7, 2025
20-Attachment BB – MWBE Goal Participation Information Packet.pdf	PDF	Nov 7, 2025
9-Attachment U - General Notices, Notes Information.docx	DOCX document	Nov 7, 2025
14-Attachment T - General Conditions.pdf	PDF	Nov 7, 2025
1-Attachment B - Bid Schedule - Pricing Form.pdf	PDF	Nov 7, 2025
23-Attachment O - Davis Bacon Current Wage Decision.pdf	PDF	Nov 7, 2025
21-Attachment L - Certification of Compliance with Federal Standards Requirements.pdf	PDF	Nov 7, 2025
28-Federal IFB General Conditions and Specifications - Construction.pdf	PDF	Nov 7, 2025
4-Attachment F - References.pdf	PDF	Nov 7, 2025
7-Attachment N - Workers Compensation Insurance Coverage Rule 110.110.pdf	PDF	Nov 7, 2025
17-Attachment Q - Section 3 Bid Requirements.pdf	PDF	Nov 7, 2025
5-Attachment I - Performance Bond for Public Works over 100,000.pdf	PDF	Nov 7, 2025

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KEY MAP 578 D, PCT 2

HCFCD PROJECT ID# B512-02-00-E002

LESLEY BRIONES

TOM S. RAMSEY, P.E.

ADRIAN GARCIA

RODNEY ELLIS

COUNTY JUDGE LINA HIDALGO

PCT. 1

PCT. 2 PCT. 4

PCT. 3

CHRISTINA (TINA) PETERSEN, PHD, P.E.EXECUTIVE DIRECTOR SHEET 01 OF 73

FINAL SUBMITTAL

PROJECT LOCATION

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PROJECT

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PRECINCT 4

PRECINCT 3

PRECINCT 1

PRECINCT 2

BROOKGLEN STORMWATER DETENTION BASIN

PHASE 2

JOB ID:

TX-GLO CDBG-DR CONTRACT ID: 24-033-000-E072

US-HUD CDBG-DR CONTRACT ID: B-17-DM-48-0001; B-18-DP-48-0001

Issued for Bidding 11/07/2025 25-0353

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ONE-CALL NOTIFICATION SYSTEM

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CALL BEFORE YOU DIG!!!

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(713) 223-4567

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OCTOBER 9, 2025

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SOMERTON DR.

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OAKHAVEN RD.

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LUELLA BLVD.

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SPENCER HWY

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GLADWYNE LN.

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ASHWYNE LN.

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FERN ROCK DR.

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HARDY TOLL ROAD

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Houston, Texas 77092 9900 Northwest Freeway

SHEET NUMBER

DATE: 09-Oct-2025

SCALE: AS -NOTED

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AECOM Technical Services, Inc.

800 Gessner Road, Suite 1200

Houston, Texas 77024 TBPE Reg. No. F-3580

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INDEX OF DRAWINGS

SHEET NO. SHEET TILE REVISION

GENERAL

01 COVER SHEET

02 INDEX OF DRAWINGS

03 HCFCD EXPRESS REVIEW SHEET

04 GENERAL NOTES 1 OF 5

05 GENERAL NOTES 2 OF 5

06 GENERAL NOTES 3 OF 5

07 GENERAL NOTES 4 OF 5

08 GENERAL NOTES 5 OF 5

09 LEGENDS & ABBREVIATIONS

10 SURVEY CONTROL MAP 1 OF 5

11 SURVEY CONTROL MAP 2 OF 5

12 SURVEY CONTROL MAP 3 OF 5

13 SURVEY CONTROL MAP 4 OF 5

14 SURVEY CONTROL MAP 5 OF 5

15 SWINGTIES 1 OF 5

16 SWINGTIES 2 OF 5

17 SWINGTIES 3 OF 5

18 SWINGTIES 4 OF 5

19 SWINGTIES 5 OF 5

20 OVERALL PROJECT LAYOUT

21 ACCESS ROUTE AND CONSTRUCTION ACCESS

PROPOSED COMPARTMENT PLANS

22 EXISTING RIGHT OF WAY 1 OF 2

23 EXISTING RIGHT OF WAY 2 OF 2

24 EXIST CONDITIONS AND DEMOLITION PLAN 1 OF 2

25 EXIST CONDITIONS AND DEMOLITION PLAN 2 OF 2

26 PROPOSED RIGHT OF WAY 1 OF 2

27 PROPOSED RIGHT OF WAY 2 OF 2

28 EXCAVATION PLAN

29 COORDINATE LAYOUT PLAN 1 OF 2

30 COORDINATE LAYOUT PLAN 2 OF 2

31 COORDINATE POINT TABLE

32 BASIN CROSS SECTIONS 1 OF 3

33 BASIN CROSS SECTIONS 2 OF 3

34 BASIN CROSS SECTIONS 3 OF 3

35 WEST COMPARTMENT SPILLWAY

36 NORTH COMPARTMENT SPILLWAY

37 WATER, SANITARY, STORM SEWER AND PAVING LAYOUT 1 OF 2

38 WATER, SANITARY, STORM SEWER AND PAVING LAYOUT 2 OF 2

INDEX OF DRAWINGS

SHEET NO. SHEET TILE REVISION

39 ASHWYNE LN PLAN AND PROFILE STA 1+00 TO 6+20

40 ASHWYNE LN PLAN AND PROFILE STA 6+20 TO 10+60

41 SOUTH COMPARTMENT OUTFALL PLAN AND PROFILE STA 1+00 TO 5+60

42 SOUTH COMPARTMENT OUTFALL PLAN AND PROFILE STA 5+60 TO 10+20

43 SOUTH COMPARTMENT OUTFALL PLAN AND PROFILE STA 10+20 TO 14+80

44 STORM WATER POLLUTION PREVENTION PLAN 1 OF 2

45 STORM WATER POLLUTION PREVENTION PLAN 2 OF 2

DETAILS

46 MISCELLANEOUS DETAILS 1 OF 1

47 STRUCTURAL DETAILS 1 OF 1

48 INTERCEPTOR STRUCTURE AND CONCRETE PILOT DETAILS

49 STORM SEWER AND RIPRAP DETAILS

50 CONCRETE CHANNEL LINING DETAILS

51 FLOATABLE COLLECTION STRUCTURE DETAILS 1 OF 3

52 FLOATABLE COLLECTION STRUCTURE DETAILS 2 OF 3

53 FLOATABLE COLLECTION STRUCTURE DETAILS 3 OF 3

54 HCFCD SWPPP DETAILS

55 STANDARD CIVIL DETAILS 1 OF 11

56 STANDARD CIVIL DETAILS 2 OF 11

57 STANDARD CIVIL DETAILS 3 OF 11

58 STANDARD CIVIL DETAILS 4 OF 11

59 STANDARD CIVIL DETAILS 5 OF 11

60 STANDARD CIVIL DETAILS 6 OF 11

61 STANDARD CIVIL DETAILS 7 OF 11

62 STANDARD CIVIL DETAILS 8 OF 11

63 STANDARD CIVIL DETAILS 9 OF 11

64 STANDARD CIVIL DETAILS 10 OF 11

65 STANDARD CIVIL DETAILS 11 OF 11

66 LANDSCAPE AND PLANTING 1 OF 2

67 LANDSCAPE AND PLANTING 2 OF 2

68 TRAFFIC CONTROL PLAN PROJECT APPROACH SIGNAGE

69 TRAFFIC CONTROL DETAILS 1 OF 3

70 TRAFFIC CONTROL DETAILS 2 OF 3

71 TRAFFIC CONTROL DETAILS 3 OF 3

72 SOIL BORING PROFILES 1 OF 2

73 SOIL BORING PROFILES 2 OF 2

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578D

8831 OAKHAVEN ROAD, LA PORTE, TX 77571

LA PORTE

B112-00-00

AECOM

POST-USACE VERIFIED WATERS OF UNITED STATES DELINEATION REPORT

SEPTEMBER 2021

47 - 53

22 - 23, 26 - 27

B112-00-00

BROOKGLEN STORMWATER DETENTION BASIN

PHASE 2

8831 OAKHAVEN ROAD, LA PORTE, TX 77571

03 73

1021820000001 1021820000002 1021820000003 1021820000004 1021820000005 1021820000006 1021820000007 1021820000008 1021820000009 1021820000010 1021820000011 1021820000012 1021820000013 1021820000014 1021820000015 1021820000016 1021820000017 1021820000018 1021820000019 1021820000020 1021820000021 1021820000022 1021820000023 1021820000024 1021820000025 1021820000026 1021820000027 1021820000028 1021820000029 1021820000030 1021820000031 1021820000032 1021750000065 1021750000066 1021750000067 1021750000068 1021750000069 1021750000070

ARMAND BAYOU

HCFCD

48201C0940M 1/6/2017

22.0 FT

01 73

44, 45, AND 54

8.18AC

BROOKGLEN

SEE SURVEY SHEETS 10-14

SOMERTON DRIVE, ASHWYNE LANE, GLADWYNE LANE

BLOCK 1 BROOKGLEN SEC. 1 VOL. 153, PG. 99 M.R.H.C., TX

BLOCK 11 BROOKGLEN SEC. 2 VOL. 167, PG. 109 M.R.H.C., TX

10/9/25

SEE SHEETS 12 - 14

ENGINEER'S CERTIFICATION

4. FLOOD PLAIN STATUS

HARRIS COUNTY

FLOOD CONTROL DISTRICT

REVIEW SHEET

HARRIS COUNTY FLOOD CONTROL DISTRICT

2. SITE DETENTION DRAINAGE

R E V I S I O N S

(2001 ADJ.)

5. WORK IN HCFCD RIGHT-OF-WAY

1. PROPERTY DESCRIPTION

OFFSITE SHEET FLOW: (100 YEAR)

OFFSITE SHEET FLOW MAPPING, TOTAL DISCHARGE CALCULATIONS, AND

DESIGN ACCOMODATIONS ARE SHOWN ON SHEET _____ OR, AS PRESENTED

IN THE APPROVED DRAINAGE STUDY ENTITLED _________________________.

TOTAL ACREAGE = _____

TOTAL DISCHARGE = _____

NOTE: ALL OFFSITE SHEET FLOW FROM ADJACENT PROPERTIES MUST BE

IDENTIFIED AND PROPERLY ACCOUNTED FOR IN THE PROJECT. THE SIGNING

ENGINEER HEREBY CERTIFIES THAT THESE AREAS HAVE BEEN ADDRESSED.

HCFCD SIGNATURE BLOCK

3. SWQ DISCHARGE INTO FCD FACILITY

6. REPORTS/AGREEMENTS

FOR PROJECTS LOCATED IN ANY FLOODPLAIN

Development constructed or placed in accordance with these plans will comply with all provisions of the designated Floodplain Administrator.

No net fill is allowed in the flood plain and no fill is allowed in the floodway.

HARRIS COUNTY FLOOD CONTROL DISTRICT

22 - 43

N/A N/A

N/A

36- INCH

4' X 2'

N/A

SWG-2021-00093 (NWP 3 a/c)

N/A

12.55 31.63

2969.72 4215.83

4134.07

20.35

N/A

6.19

2902.41

16.18

N/A

5.57

9.50

131.4

BROOKGLEN STORMWATER DETENTION BASINS, HCFCD PROJECT ID# B512-02-E001,

FINAL DRAINAGE REPORT

B512-02-00-E001

AECOM TECHNICAL SERVICES, INC.

GEOTECHNICAL INVESTIGATION, BROOKGLEN DETENTION BASINS, HCFCD PROJECT ID #

B512-02-E001, HARRIS COUNTY PRECINCT 2, HARRIS COUNTY, TEXAS, REPORT NO. G118-20

B512-02-00-E001

AVILES ENGINEERING CORPORATION

12/15/2020

N/A

22.0

49.5244.55

BASIN LOWEST ELEVATION = 10.30,

BERM ELEVATION = 20.70

N/A N/A

B512-02-00-E002

20.2 FT

PROPOSED DETENSION BASIN

04/04/2023

1,427

45,157

$3,627,145

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I, , A LICENSED PROFESSIONAL ENGINEER IN THE STATE OF TEXAS, DO HEREBY CERTIFY

AutoCAD SHX Text THAT THE INFORMATION PRESENTED ON THIS SHEET IS TRUE AND CORRECT TO THE BEST OF MY KNOWLEDGE

AutoCAD SHX Text AND THAT I AM NOT VIOLATING ANY PROVISION OF THE CURRENT TEXAS ENGINEERING PRACTICE ACT AND RULES

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CONCERNING THE PRACTICE OF ENGINEERING AND PROFESSIONAL ENGINEERING LICENSURE.

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THE COMPLETED PROJECT CONSISTS OF DRAWING SHEETS THRU .

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SEAL

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SIGNATURE

AutoCAD SHX Text ANY VIOLATIONS WILL BE FORWARDED TO THE HARRIS COUNTY DISTRICT ATTORNEY'S OFFICE FOR PROSECUTION.

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FIRM PANEL(S) FOR PROPERTY:

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FIRM PANEL(S) DATE:

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STATUS OF PROPERTY ON MAP

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ENTIRELY LOCATED IN UNSHADED ZONE "X"

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LOCATED PARTIALLY OR ENTIRELY IN ANY "A" ZONE OR SHADED ZONE "X",

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ELEVATION INFORMATION

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BENCHMARK USED

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DESCRIPTION OF BENCHMARK INCLUDING ELEVATION, DATUM AND

AutoCAD SHX Text %%uII. FLOOD PLAIN DETERMINATION BASED ON GROUND ELEVATION

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PROPERTY LIES ENTIRELY ABOVE THE BASE FLOOD LEVEL

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PROPERTY LIES PARTIALLY OR ENTIRELY BELOW THE BASE FLOOD

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AND IN SHADED ZONE "X"

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LEVEL

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YEAR OF ADJUSTMENT

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HARRIS COUNTY FLOODPLAIN REFERENCE MARK

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HARRIS-GALVESTON COASTAL SUBSIDENCE DISTRICT

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SHEET NUMBER ___ OF ___

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HARRIS COUNTY FLOOD CONTROL PROJECT NO.

AutoCAD SHX Text WAS ACCEPTED BY HARRIS COUNTY FLOOD CONTROL DISTRICT FOR THE PURPOSES LISTED BELOW:

AutoCAD SHX Text THE PROJECT WAS REVIEWED, HOWEVER, THIS DOES NOT MEAN THE ENTIRE PROJECT, INCLUDING ALL SUPPORTING DATA

AutoCAD SHX Text AND CALCULATIONS HAVE BEEN COMPLETELY CHECKED AND VERIFIED. THESE DRAWINGS ARE SIGNED, DATED AND SEALED

AutoCAD SHX Text BY A PROFESSIONAL ENGINEER LICENSED TO PRACTICE IN THE STATE OF TEXAS, WHICH THEREFORE CONVEYS THE ENGINEER'S

AutoCAD SHX Text RESPONSIBILITY AND ACCOUNTABILITY. THIS DOES NOT RELIEVE ANY PARTY FROM COMPLYING WITH APPROPRIATE FEDERAL, STATE

AutoCAD SHX Text AND LOCAL ENVIRONMENTAL RULES, LAWS, AND REGULATIONS AND ANY OTHER LEGALLY ADOPTED REGULATION OR ORDINANCE

AutoCAD SHX Text UNTIL SUCH SIGNATURES ARE OBTAINED. PLAN APPROVAL EXPIRATION TO BE IN ACCORDANCE WITH LOCAL GOVERNEMENT CODE CH. 245.

AutoCAD SHX Text %%uI. GENERAL INFORMATION

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BENCHMARK (FOR COASTAL AREAS)

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DELINEATE FLOODPLAIN BOUNDARY ON CONSTRUCTION DRAWINGS

AutoCAD SHX Text %%uIII. FLOODPLAIN STORAGE SUMMARY

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A. TOTAL VOLUME OF MATERIAL PROPOSED TO BE MOVED OR PLACED WITHIN

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(APPLIES ONLY TO PORTION OF LAND LOCATED WITHIN FEMA REGULATORY FLOODPLAIN).

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THE FIRM DELINEATED FLOODPLAIN (FILL, BASE, CONCRETE, ASPHALT, ETC.):

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BELOW 0.2%%% BASE FLOOD ELEVATION

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(2001 ADJ.)

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CUBIC YARDS

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DELINEATED FLOODPLAIN:

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B. TOTAL VOLUME OF MATERIAL PROPOSED TO BE REMOVED FROM THE FIRM

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(2001 ADJ.)

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CUBIC YARDS

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SITE REMOVED FROM FLOODPLAIN BY LOMR, LOMR-F, LOMA

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CASE NO.__________ REVISED FLOODPLAIN IS SHOWN ON SHEET____

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INTERPOSE NO OBJECTION

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APPROVED:

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FOR ITEMS LOCATED OUTSIDE OF HCFCD RIGHT-OF-WAY

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FOR ITEMS LOCATED WITHIN EXISTING HCFCD RIGHT-OF-WAY

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FOR ITEMS LOCATED WITHIN PROPOSED HCFCD RIGHT-OF-WAY

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STORMWATER DRAINAGE DESIGN REPORT

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REPORT TITLE __________________________________________________________

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REPORT ACCEPTANCE DATE _____________________

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HCFCD PROJECT #______________

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PROJECT NAME:

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APPROVED:

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VERSION 1.0 OCTOBER 2019

AutoCAD SHX Text RELATED TO LAND DEVELOPMENT. IF THE CITY SIGNATURES ARE REQUIRED BY ORDINANCE, COUNTY PERMITS WILL NOT BE ISSUED

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DATE

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SHEET NO.

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DESCRIPTION

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H.C.F.C.D APPROVED DATE

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DATE

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%%UI. TYPE OF WORK TO BE PERFORMED IN HCFCD HCFCD ROW

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%%UII. USACE ENVIRONMENTAL PERMIT

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%%UIII. REFERENCE / BASIS OF DETERMINATION

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I. - III. REQUIRED ON PROJECTS WITH WORK IN A HCFCD CHANNEL.

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%%UNOTES:

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PLEASE REFERENCE SECTION 17 OF THE FLOOD CONTROL DISTRICT

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POLICY, CRITERIA, AND PROCEDURE MANUAL FOR MORE INFORMATION.

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(DRAINAGE LAYOUT PG. NO._____)

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(1%%% BASE FLOOD LEVEL______)

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P.E. INITIAL

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C. FILL AREA & VOLUME CALCULATIONS ARE SHOWN ON SHEET

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ADDRESS:

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PLANS HAVE BEEN APPROVED BY HARRIS COUNTY FLOOD CONTROL.

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NOTE: REVISION BLOCK IS TO BE USED ONLY FOR CHANGES MADE %%UAFTER%%U

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GEOTECHNICAL INVESTIGATION REPORT

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(0.2%%% BASE FLOOD LEVEL_____)

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BELOW 0.2%%% BASE FLOOD ELEVATION

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PUBLIC

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PUBLIC & PRIVATE

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NONE

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RECORDED PLAT / REPLAT

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PROPOSED PLAT / REPLAT

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%%UI. LOCATION INFORMATION

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%%UIV. JURISDICTIONS

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A. ACREAGE:

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A. SUBDIVISION PLAT

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PRIVATE

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SURVEY & ABSTRACT:

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C. ADJACENT ROADS:

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%%UII. LEGAL DESCRIPTION

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PLAT NAME:

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B. STREETS PROPOSED

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ETJ, CITY OF HOUSTON

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NO ETJ

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ETJ, CITY OF

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CITY OF

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%%UIII. PLATTING

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B. SUBDIVISION:

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%%UV. HCAD ACCOUNT NOS. (ALL)

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B. KEY MAP:

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A. HARRIS COUNTY COMMISSIONER'S PRECINCT:

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C. ADDRESS:

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UTILITY DISTRICT (NAME)

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RE-DEVELOPMENT AREA (AMOUNT INCREASED IMPERVIOUS AREA):

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NEW DEVELOPMENT AREA:

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%%UI. PROPOSED DRAINAGE AREA

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%%UII. METHODOLOGY

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%%UIII. DETENTION VOLUME & OUTFALL

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OUTFALL TO:

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LOW IMPACT DEVELOPMENT (LID)

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OTHER (OWNER & OPERATOR)

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%%UVII. DETENTION PROVIDED BY

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REGIONAL DETENTION BASIN SYSTEM (APPROVED H.C. PRJ NO.): ________

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FINAL PERMITTING BY OTHERS

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NO REVIEW REQUIRED:

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ADDITIONAL COMMENTS:

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DETENTION BASIN MAINTAINED BY: _____________________________

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HCFCD PCPM DETENTION METHOD USED:

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METHOD 1 (LESS THAN 20 ACRES)

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METHOD 3 (GREATER THAN 640 ACRES)

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METHOD 2 (20 ACRES TO 640 ACRES)

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D. ADDITIONAL CRITERIA FOR PUMPED DETENTION BASINS

AutoCAD SHX Text %%UI. SWPPP: CONSTRUCTION MEASURES. (Must complete)

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OTHER(S):

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DISTURBS >1AC. SITE PLAN & DETAILS ON SHEET(S)

AutoCAD SHX Text %%U*II. APPLICABILITY FOR PERMANENT FEATURES. (Must complete)

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%%UIII. PERMANENT SWQ FEATURES.%%U (COMPLETE IF NOT EXEMPT)

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SHEET(S)

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VEGETATIVE CONTROLS USED: (FILTER STRIP, GRASSY SWALE,

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PROJECT'S DRAINAGE TIES DIRECTLY INTO AN EXISTING DRAINAGE

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SITE PLAN ON SHEET(S)

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POND STRUCTURE USED (WET, DRY, WETLANDS) DETAILS AND

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CALCULATIONS APPEAR ON SHEET(S)

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PROJECT DOES NOT MEET THE DEFINITION OF SIGNIFICANT

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STORMWATER QUALITY PERMIT REQUIREMENT IS COVERED BY AN

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EXISTING SWQMP WITHIN PROJECT TITLE:

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HYDRODYNAMIC TYPE SEPARATOR MODEL:

AutoCAD SHX Text REDEVELOPMENT (Part A,Sec. 2.39 of Regulations of Harris County, AutoCAD SHX Text

PROJECT IS ON A PARCEL (A COMMON PLAN OF DEVELOPMENT)

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(FOR VERIFICATION: PROVIDE ORIGINAL DRAINAGE AREA MAP

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PROJECT'S SWQ REQUIREMENTS FALL WITHIN THE JURISDICTION OF:

AutoCAD SHX Text HARRIS COUNTY PROJECT No & SWQ PERMIT No.

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EXEMPT NEW DEVELOPMENT:

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EXEMPT REDEVELOPMENT:

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EXEMPT GRANDFATHERED:

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%%UGENERAL:

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DISTURBS <1AC. N/A

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%%USTORMWATER QUALITY MANAGEMENT PLAN:

AutoCAD SHX Text LESS THAN 5 ACRES. (Must be verified with plat)

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SYSTEM PRIOR TO OCTOBER 1, 2001.

AutoCAD SHX Text Texas for Stormwater Quality Management)

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INCLUDING CALCULATIONS)

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URBAN FORESTRY DETAILS AND CALCULATIONS APPEAR ON

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%%UV. DETENTION PROVIDED IN OTHER PLANS:

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%%UI. HCFCD ACCEPTED REPORTS (ALL)

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HCFCD MAINTENANCE

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OTHER

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TURF ESTABLISHMENT

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INTERLOCAL (ILA):

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ENGINEERING FIRM _________________________________________

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REPORT TITLE __________________________________________________________

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REPORT ACCEPTANCE DATE _____________________

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HCFCD PROJECT #______________

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ENGINEERING FIRM _________________________________________

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A. BOND/NOTIFICATION INFORMATION

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HCFCD APPROVED VARIANCE

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DESCRIPTION OF VARIANCE _________________________________________________

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VARIANCE ACCEPTANCE DATE _____________________

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DOCUMENT ID #______________

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%%UVI. FLOW RESTRICTOR SIZE

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OUTFALL PIPE SIZE:

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RESTRICTOR PIPE SIZE:

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%%UIV. HCFCD STANDARD NOTES%%U: SEE SHEET _____ OF THESE PLANS.

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%%UV. HCFCD STANDARD DETAILS%%U: SEE SHEET _____ OF THESE PLANS.

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%%UVI. HCFCD ACCESS PLAN%%U: SEE SHEET %%U %%U OF THESE PLANS.

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RESTRICTOR PLATE DIMENSION:

AutoCAD SHX Text HCFCD PROJECT No.

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PLAN TITLE

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DETENTION POND SERVICE AREA MAP IS PROVIDED ON SHEET

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DATE SIGNED BY HCFCD:

AutoCAD SHX Text VOLUME OF PUMPED 1%%% EXCEEDANCE STORAGE VOLUME = _______ ACFT _____ %%% OF TOTAL VOLUME

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MAXIMUM DESIGN OUTFLOW VELOCITY INTO HCFCD CHANNEL = ____________ FT/SEC

AutoCAD SHX Text DRAIN TIME FOR BASIN = _______ HOURS BASED ON ______________________HEAD CONDITIONS

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HCFCD WATERSHED

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NUMBER OF OUTFALLS

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UTILITY CROSSING

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ROADWAY BRIDGE/CULVERT CROSSING

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REHABILITATION OF CHANNEL

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FILL ACTIVITY

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MAINTENANCE

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TEMPORARY CROSSING

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OTHER

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TRAIL (LENGTH)

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COST OF WORK IN HCFCD ROW

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US ARMY CORPS OF ENGINEERS NATIONWIDE

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PERMIT NUMBER(S)

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US ARMY CORPS OF ENGINEERS INDIVIDUAL PERMITS

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OTHER

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NO PERMITS REQUIRED

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EXPLAIN:

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ENVIRONMENTAL CONSULTANT REPORT

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REPORT TITLE

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REPORT DATE

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OTHER

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%%UVII. REFER TO THE FOLLOWING PLAN SHEETS:%%U %%U

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FOR EXISTING AND PROPOSED RIGHT(S) OF WAY INCLUDING DELINEATION AND

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RECORDING INFORMATION PER HCFCD POLICY, CRITERIA, & PROCEDURE MANUAL

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ENGINEERING FIRM

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.65, H.C.F.C.D. CHANNEL, (H.C.F.C.D. UNIT NO.)

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OTHER

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.75, EXISTING STORM SEWER (OWNER & OPERATOR)

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1.00, ROADSIDE DITCH, (OWNER & ROAD NAME)

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%%UIV. STORMWATER DETENTION BASIN INFORMATION

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A. HCFCD PCPM SUMMARY TABLE SEE SHEET _____ OF THESE PLANS.

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STORM EVENT

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DETENTION BASIN SERVICE AREA

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DESIGN WATER SURFACE ELEVATION

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(2-YEAR)

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50%%% EXCEEDANCE

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(10-YEAR)

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10%%% EXCEEDANCE

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(100-YEAR)

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1%%% EXCEEDANCE

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AutoCAD SHX Text MINIMUM STORAGE REQUIRED (ac-ft)

AutoCAD SHX Text DETENTION STORAGE PROVIDED (ac-ft)

AutoCAD SHX Text STORAGE RATE PROVIDED (ac-ft/ac)

AutoCAD SHX Text DRAIN TIME - 1%%% ONLY (hours)

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METHOD/DESCRIPTION

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INCLUDING CALCULATIONS)

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B. DETENTION BASIN TO BE MAINTAINED BY ___________________

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C. DETENTION SERVICE AREA MAP ON SHEET _______

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MAXIMUM ALLOWABLE OUTFLOW AT STREAM B112-02-00 (PRE-DEVELOPMENT PEAK FLOW)

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MAXIMUM OUTFLOW PROVIDED (PEAK FLOW FROM BASIN, INCLUDES CULVERT AND WEIR FLOWS)

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LOWEST NATURAL/FINISHED GROUND OR FINISHED FLOOR ELEVATION ESTIMATE

AutoCAD SHX Text OUTFLOW VELOCITY INTO CHANNEL (ft/sec)

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EMERGENCY OVERFLOW (TYPE, SIZE, ELEVATION, ETC.)

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PROPOSED-CONDITIONS FLOW AT STREAM B112-02-00

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TRAPEZOIDAL SPILLWAY. ELEVATION = 17.50'. BOTTOM WIDTH = 20.0'. SIDE SLOPE = 4:1

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HCFCD GENERAL NOTES: (APPLICABLE WITHIN HCFCD ROW)

1. FENCES AND/OR OTHER ENCROACHMENTS IN THE HCFCD

RIGHT-OF-WAY ARE NOT TO BE REMOVED UNLESS OTHERWISE STATED

ON THE PLANS. IN CASES WHERE FENCE REMOVAL IS INDICATED ON

THE PLANS, THE FENCE SHALL BE REMOVED AND PLACED NEATLY ON

THE ADJACENT PROPERTY AT THE START OF CONSTRUCTION. WHERE

THERE IS NOT A SEPARATE ITEM LISTED ON THE UNIT PRICE

SCHEDULE, THE ENCROACHMENT REMOVAL IS INCIDENTAL TO SITE

PREPARATION AND RESTORATION.

2. DO NOT ENTER PRIVATE PROPERTY WITHOUT PROPER WRITTEN

AUTHORIZATION FROM THE OWNER. PROVIDE COPY OF WRITTEN

PERMISSION TO HCFCD.

3. STRIP VEGETATION AND TOPSOIL AND STOCKPILE FOR REUSE ONSITE.

MATERIAL FOUND UNACCEPTABLE BY THE ENGINEER WILL BE

REMOVED AND PAID AS EXCAVATION AND OFFSITE DISPOSAL. NO

SEPARATE MEASUREMENT AND PAYMENT WILL BE MADE FOR

STRIPPING, STOCKPILING AND PLACING ON-SITE TOPSOIL. THE COST

FOR THIS WORK WILL BE INCIDENTAL TO RELATED PAY ITEMS UNDER

SPECIFICATION SECTION NUMBER 02315 LISTED ON THE UNIT PRICE

SCHEDULE.

4. RIPRAP AND GRANULAR FILL MATERIAL REMOVED DURING

EXCAVATION, MEETING SPECIFICATION SECTION NUMBER 02378, SHALL

BE REUSED AS DIRECTED BY THE ENGINEER. REUSED MATERIAL WILL

BE MEASURED AND PAID FOR AS EXCAVATION AND ON-SITE FILL UNDER

SPECIFICATION NUMBER 02315. NO SEPARATE MEASUREMENT OR

PAYMENT WILL BE MADE FOR PROCESSING, HANDLING, STOCKPILING,

AND PLACING MATERIAL FOUND TO BE ACCEPTABLE FOR REUSE. UPON

APPROVAL OF THE ENGINEER, DISPOSAL OF NONCONFORMING RIPRAP

AND GRANULAR FILL MATERIAL WILL BE MEASURED AND PAID FOR AS

REMOVE AND DISPOSE OF CONCRETE RUBBLE UNDER SPECIFICATION

SECTION NUMBER 02120, MATERIAL DISPOSAL.

5. THE LOCATION AND GRADE OF THE BACKSLOPE INTERCEPTOR

STRUCTURES AND SWALES MAY BE ADJUSTED IN THE FIELD BY THE

ENGINEER AT THE TIME OF CONSTRUCTION. UNLESS OTHERWISE

INSTRUCTED BY THE ENGINEER, THE BACKSLOPE INTERCEPTOR

STRUCTURE SHALL BE SET AT A MAXIMUM DEPTH OF 2.5 FEET AND THE

MINIMUM GRADE FOR BACKSLOPE SWALES SHALL BE 0.2%.

6. NOT USED.

7. CLEAR AND REMOVE ALL SILT FROM CULVERTS, PIPES AND UNDER

BRIDGES TO THE PROPOSED DESIGN GRADES TO PROVIDE POSITIVE

FLOW.

8. LENGTHS AND DIAMETERS REPRESENTED ON PLANS ARE

APPROXIMATE. CONTRACTOR WILL BE RESPONSIBLE FOR FIELD

VERIFICATION PRIOR TO ORDERING MATERIALS.

9. ACTIVITIES THAT DISTURB BIRD HABITAT, INCLUDING BUT NOT LIMITED

TO CLEARING, GRUBBING, AND IMPACTS TO STRUCTURES WHERE

MIGRATORY BIRDS AND BALD EAGLES MIGHT NEST, REQUIRE A NEST

HABITAT SURVEY. DO NOT PROCEED UNTIL HARRIS COUNTY FLOOD

CONTROL DISTRICT HAS CONDUCTED A NEST HABITAT SURVEY TO

VERIFY ACTIVE MIGRATORY BIRD NESTS AND BALD EAGLE NESTS ARE

NOT PRESENT. THE HARRIS COUNTY FLOOD CONTROL DISTRICT MUST

PROVIDE WRITTEN AUTHORIZATION TO PROCEED.

10. THE CONTRACT CONTAINS UNIT ITEMS FOR THE ESTABLISHMENT OF

BEST MANAGEMENT PRACTICES FOR STORM WATER QUALITY

PURPOSES. WHEN NOT CALLED FOR IN THE PROJECT PLANS,

COORDINATE THE NEED AND LOCATION OF THESE UNIT ITEMS WITH

THE DISTRICT REPRESENTATIVE ON SITE PRIOR TO PLACEMENT. THESE

UNIT ITEMS INCLUDE, BUT ARE NOT LIMITED TO, REINFORCED SILT

FENCE FOR MATERIAL STOCKPILES, ANCHORED SODDING FOR

DISTURBED EARTHEN AREAS OR AROUND CONCRETE AND CONCRETE

INTERCEPTOR, AND STABILIZED CONSTRUCTION ACCESS FOR PROJECT

SITE INGRESS/EGRESS.

11. WHEN INCLUDED IN THE SCOPE OF WORK, THE PURPOSE OF DEEP

PLOWING THE SLOPE OR BERM OF A CHANNEL IS TO BREAK UP THE

DESICCATED SOILS AND TO ELIMINATE ANY VOIDS, OR RILLING CLOSE

TO THE SURFACE OF THE SLOPE OR BERM. THE CONTRACTOR WILL

DEEP PLOW THE SLOPE OR BERM TO A MINIMUM DEPTH OF 2 FEET IN

AREAS CONTAINING VOIDS AND/OR RILLING. IN AREAS OF VOIDS ONLY,

THE SURFACE FROM WHICH THE 2 FEET DEPTH IS MEASURED WILL BE

THE LEVEL OF THE SURROUNDING UNDISTURBED SOIL. IN AREAS OF

RILLING, THE RILLS WILL FIRST BE KNOCKED DOWN AND LEVELED OFF.

THE 2 FEET DEPTH WILL THEN BE MEASURED FROM THIS NEW

SURFACE. THE CONTRACTOR WILL DETERMINE THE MEANS AND

METHODS FOR DEEP PLOWING.)

12. TREES AND PLANTS LOCATED WITHIN A DESIGNATED TREE

PROTECTION ZONE (TPZ) SHALL BE PRESERVED. REFER TO

SPECIFICATION SECTION 01566 - TREE AND PLANT PROTECTION, FOR

DETAILED INFORMATION ON TREE AND PLANT PRESERVATION

PRACTICES AND PROCEDURES INCLUDING, BUT NOT LIMITED TO, ROOT

PRUNING, VEGETATION TRIMMING, FENCING AND OTHER

PRESERVATION OPERATIONS.

FLOOPLAIN NOTES:

1. THIS PROJECT IS LOCATED WITHIN TH E LIMITS CONTROLLED BY THE

NATIONAL FLOOD INSURANCE PROGRAM AS SHOWN ON FLOOD

INSURANCE RAT MAP (FIRM). THE EFFECTIVE FIRM MAPS FOR THE

PROJECT ARE: FIRM MAP NO. 48201C0940M, MAP REVISED 01/06/2017

2. THE PROJECT ALIGNMENT RUNS WITHIN 100-YR AE ZONE, FLOODWAY,

500 YEAR ZONE X, ETC.

3. NO FILL IS PROPOSED TO BE PLACED BELOW THE BASE FLOOD

ELEVATION WITHIN THE FLOODPLAIN.

4. CONTRACTOR SHALL CONTACT THE FLOODPLAIN MANAGEMENT OFFICE

48-HOURS PRIOR TO ANY WORK WITHIN THE FLOODPLAIN

5. ALL SPOIL MATERIAL TO BE STOCKPILED OUTSIDE OF THE 100-YEAR

FLOODPLAIN BOUNDARY. STOCKPILE LOCATION IS TO BE

COORDINATED WITH PROPERTY OWNER

CITY OF LA PORTE GENERAL CONSTRUCTION NOTES:

(APPLICABLE WITHIN CITY OF LA PORTE ROW)

1. CONTRACTOR SHALL FIELD VERIFY EXISTING CONDITIONS BEFORE

BEGINNING CONSTRUCTION.

2. CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING SECURITY TO

PROTECT HIS OWN PROPERTY, EQUIPMENT AND WORK IN PROGRESS.

3. CONTRACTOR SHALL BE RESPONSIBLE FOR CLEANING OF STREETS

CAUSED BY ASSOCIATED CONSTRUCTION AT CLOSE OF EACH

WORKDAY.

4. PAVED SURFACES SHALL BE PROTECTED FROM DAMAGE BY TRACKED

EQUIPMENT.

5. IRON RODS DISTURBED DURING CONSTRUCTION ARE TO BE REPLACED

BY A REGISTERED PUBLIC LAND SURVEYOR FOR THE ORIGINAL

PROPERTY OWNER AT NO SEPARATE PAY.

6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING AN

UPDATED REDLINED “RECORD” SET OF CONSTRUCTION DRAWINGS ON

SITE FOR INSPECTION BY THE ENGINEER.

7. CONTRACTOR MUST PROVIDE FENCING AROUND OPEN EXCAVATION

AREAS DURING NON-WORKING HOURS.

8. REFER TO THE SWPPP GENERAL NOTES FOR PROPER MEASURES AND

CONTROLS.

9. CONTRACTOR SHALL OBTAIN ALL CONSTRUCTION PERMITS REQUIRED

BY THE STANDARDS BY THE GOVERNMENTAL AGENCY HAVING

JURISDICTION.

10. EXISTING PAVEMENTS, CURBS, SIDEWALKS AND DRIVEWAYS DAMAGED

OR REMOVED DURING CONSTRUCTION SHALL BE REPLACED TO

ORIGINAL OR BETTER CONDITION IN ACCORDANCE WITH CITY OF LA

PORTE AND/OR HARRIS COUNTY CRITERIA.

11. WHENEVER UNSUITABLE MATERIAL IS ENCOUNTERED AND CANNOT BE

HANDLED BY THE EXCAVATION OR EMBANKMENT REQUIREMENTS,

THEN THE UNSUITABLE MATERIAL SHALL BE EXCAVATED TO A DEPTH

DEEMED SUITABLE BY THE ENGINEER AND THE EXCAVATED MATERIAL

SHALL BE DISPOSED OF OFF THE JOB SITE. THE EXCAVATED AREA

SHALL BE FILLED WITH SELECT FILL PER HARRIS COUNTY CRITERIA.

12. SURPLUS EXCAVATED EARTHEN MATERIAL BECOMES THE PROPERTY

OF THE CONTRACTOR AND SHALL BE REMOVED AND DISPOSED OF

OFF-SITE. INCLUDE COST OF REMOVAL AND DISPOSAL IN OTHER ITEMS

OF WHICH THIS WORK IS A COMPONENT PART, NO SEPARATE PAY. THE

MATERIAL MUST BE DISPOSED OF IN A SAFE AND LEGAL MATTER.

13. ADEQUATE DRAINAGE SHALL BE MAINTAINED AT ALL TIMES DURING

CONSTRUCTION. ANY DRAINAGE DITCH OR STRUCTURE DISTRIBUTED

DURING CONSTRUCTION SHALL BE RESTORED TO THE SATISFACTION

OF THE OWNING AUTHORITY. DAMAGE TO EXISTING PAVEMENT DURING

CONSTRUCTION SHALL BE RESTORED TO THE SATISFACTION OF THE

ENGINEER OR OWNING AUTHORITY.

14. WHERE MANHOLES ARE LOCATED WITHIN PAVED AREAS, CONTRACTOR

SHALL SET RIM ELEVATIONS. OUTSIDE OF PAVED AREAS, SET

MANHOLES 3 INCHES (MINIMUM) TO 6 INCHES (MAXIMUM) ABOVE

FINISHED GRADE. ADD SLOPE ALL AROUND MANHOLES, SLOPED AWAY

AND DOWN FROM MANHOLE RING.

15. THE PROPOSED DEVELOPMENT HAS BEEN DESIGNED NOT TO IMPEDE,

IMPOUND, OR BLOCK THE NATURAL FLOW OF WATER ACROSS

ADJACENT AND CONTIGUOUS PROPERTIES.

16. THE MORE STRINGENT OF CITY OF LA PORTE’S AND HARRIS COUNTY

FLOOD CONTROL DISTRICT'S DETAIL SHEETS SHALL APPLY WHERE

THERE IS A CONFLICT.

17. ALL AREAS ON ADJACENT FUTURE SECTION WHERE DIRT IS TO BE

PLACED SHALL FIRST BE STRIPPED OF VEGETATION AND DISPOSED OF

AT NO SEPARATE PAY.

18. CONTRACTOR IS RESPONSIBLE FOR HAVING ALL BURIED UTILITIES

IDENTIFIED, PROTECTED, REPLACED AND/OR PROPERLY REPAIRED IF

DAMAGED. REPAIRS/REPLACEMENT SHALL BE AT THE CONTRACTOR’S

EXPENSE.

19. CONTRACTOR SHALL OBTAIN AND MAINTAIN ON SITE ALL APPLICABLE

PERMITS AND AN APPROVED COPY OF THE PLANS AND

SPECIFICATIONS. NOTIFY THE CITY PUBLIC WORKS DEPARTMENT 48

HOURS PRIOR TO COMMENCEMENT OF WORK.

20. ALL CONSTRUCTION MATERIAL TESTING SHALL BE PERFORMED BY AN

INDEPENDENT TESTING LABORATORY CERTIFIED BY THE APPROPRIATE

AGENCY FOR THE FIELD OF TESTING BEING CONDUCTED AND

SUPERVISED BY A TEXAS PROFESSIONAL ENGINEER. ALL TESTING

SHALL BE PERFORMED IN ACCORDANCE WITH GENERALLY ACCEPTED

STANDARDS, INCLUDING:

A. RULES AND REGULATIONS PUBLISHED BY THE TEXAS

COMMISSION ON ENVIRONMENTAL QUALITY (TCEQ).

B. AMERICAN SOCIETY OF TESTING MATERIALS (ASTM).

C. AMERICAN CONCRETE INSTITUTE (ACI).

D. THE ASPHALT INSTITUTE

E. TEXAS DEPARTMENT OF TRANSPORTATION STANDARD

SPECIFICATIONS

21. TESTING LABORATORIES SHALL BE HIRED BY THE PROJECT OWNER OR

PROJECT ENGINEER AND CONTRACTS SHALL AVOID CONFLICTS OF

INTEREST.

22. TESTING LABORATORIES ARE NOT AUTHORIZED TO REVOKE, MODIFY,

OR RELEASE ANY REQUIREMENT OF THE SPECIFICATIONS AND THEY

MAY NOT APPROVE OR ACCEPT ANY PORTION OF WORK ON A PROJECT.

WHEN IT APPEARS THAT THE MATERIAL FURNISHED OR WORK

PERFORMED FAILS TO MEET THE CONTRACT DOCUMENT

REQUIREMENTS, THE TESTING LABORATORY SHALL PROMPTLY INFORM

THE CITY, IN WRITING, OF SUCH DEFICIENCIES.

23. ALL RETESTS OF FAILED DENSITIES SHALL BE TAKEN WITHIN FIVE

LINEAR FEET (5’) OF THE FAILED TEST.

24. MOISTURE CONTENT ON ALL SOIL DENSITY TESTS SHALL BE WITHIN

PLUS OR MINUS TWO PERCENT (2%) TO ACHIEVE A PASSING TEST,

UNLESS APPROVAL IS GRANTED BY THE CITY ENGINEER BASED UPON

SITE-SPECIFIC TESTING.

25. ANY POLLUTION CONTROL DEVICE, SOD, OR SEEDED AREA DAMAGED,

DISTURBED, OR REMOVED SHALL BE REPLACED OR REPAIRED AT THE

CONTRACTOR’S EXPENSE. THE CONTRACTOR IS RESPONSIBLE FOR

WATERING ANY SEED OR SOD WHICH HE HAS INSTALLED UNTIL 100%

OF VEGETATION IS ESTABLISHED.

Houston, Texas 77092 9900 Northwest Freeway

SHEET NUMBER

DATE: 09-Oct-2025

SCALE: AS -NOTED

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TO ARRANGE FOR LINES TO BE TURNED OFF OR MOVED, CALL CENTERPOINT

ENERGY AT 713-207-2222.

NOTICE: FOR YOUR SAFETY, YOU ARE REQUIRED BY TEXAS LAW TO CALL 811 AT LEAST

48 HOURS BEFORE YOU DIG SO THAT UNDERGROUND LINE CAN BE MARKED. THIS

VERIFICATION DOES NOT FULFILL YOUR OBLIGATION TO CALL 811.

VERIFICATION OF PRIVATE UTILITY LINES

DATE:

CENTERPOINT ENERGY/NATURAL GAS FACILITIES VERIFICATION ONLY. (THIS

SIGNATURE VERIFIES THAT YOU HAVE SHOWN CNP NATURAL GAS LINES

CORRECTLY -NOT TO BE USED FOR CONFLICT VERIFICATION.) (GAS SERVICE

LINES ARE NOT SHOWN.) SIGNATURE VALID FOR SIX MONTHS.

DATE:

CENTERPOINT ENERGY/UNDERGROUND ELECTRICAL FACILITIES VERIFICATION

ONLY. (THIS SIGNATURE VERIFIES EXISTING UNDERGROUND FACILITIES -NOT

TO BE USED FOR CONFLICT VERIFICATION.) SIGNATURE VALID FOR SIX

MONTHS.

DATE:

APPROVED FOR AT&T TEXAS/SWBT UNDERGROUND CONDUIT FACILITIES ONLY.

SIGNATURE VALID FOR ONE YEAR

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CITY OF LA PORTE GENERAL CONSTRUCTION NOTES CONTINUED:

(APPLICABLE WITHIN CITY OF LA PORTE ROW)

26. STORM WATER POLLUTION PROTECTION SHALL BE DESIGNED,

CONSTRUCTED, MAINTAINED AND SHALL BE IN TOTAL COMPLIANCE WITH

THE STORM WATER QUALITY MANUAL OF THE CITY OF LA PORTE.

27. ANY MATERIALS OR WORKMANSHIP NOT MEETING OR EXCEEDING THE CITY

OF LA PORTE STANDARDS IS THE SOLE RESPONSIBILITY OF THE

CONTRACTOR AND SHALL BE REPLACED AT THE CONTRACTOR'S EXPENSE.

FULL REPLACEMENT REQUIRED; REPAIRS SHALL REQUIRE PRIOR

APPROVAL OF CITY ENGINEER.

28. CONTRACTOR SHALL KEEP STREETS, RIGHT-OF-WAY, AND WORK AREA

CLEAN OF DIRT, MUD, AND DEBRIS AS NEEDED.

29. THE CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL REQUIRED TRAFFIC

SAFETY CONTROL DEVICES UP TO AND INCLUDING FLAG MEN OR POLICE

OFFICERS.

30. CONTRACTOR SHALL CONTACT THE CITY OF LA PORTE TO OPERATE

EXISTING UTILITIES AND PRIOR TO MAKING TIE-INS. CONTRACTOR SHALL

NOT, AT ANY TIME, OPERATE PUBLIC UTILITIES.

31. ALL BACKFILL WITHIN PUBLIC RIGHTS-OF-WAY OR EASEMENTS SHALL BE

ENGINEERED TO 95% STANDARD PROCTOR DENSITY (IN 8 INCH LIFTS) AND

TESTED FOR ± 2% OPTIMUM BY AN APPROVED LAB.

32. THE CONTRACTOR SHALL NEVER UNLOAD ANY TRACK-TYPE VEHICLE OR

EQUIPMENT ON ANY EXISTING PAVEMENT OR CROSS OVER ANY EXISTING

PAVEMENT OR CURB.

33. ALL FINISH GRADES ARE TO CONFORM TO A MINIMUM SLOPE OF 6” PER 100

FEET. POSITIVE DRAINAGE IS DEPICTED BY ARROWS.

34. CONTRACTOR SHALL UNCOVER EXISTING UTILITIES AT ALL “POINTS OF

CROSSING” TO DETERMINE IF CONFLICTS EXIST BEFORE COMMENCEMENT

OF ANY CONSTRUCTION. NOTIFY THE ENGINEER AT ONCE OF ANY

CONFLICT.

35. CONTRACTOR SHALL PROVIDE SHEETING, SHORING, AND BRACING AS

NECESSARY TO PROTECT WORKMEN AND EXISTING UTILITIES DURING ALL

PHASES OF CONSTRUCTION AS PER O.S.H.A. REQUIREMENTS.

36. THE CONTRACTOR SHALL BE RESPONSIBLE FOR SAFEGUARDING AND

PROTECTING ALL MATERIALS AND EQUIPMENT STORED ON THE JOBSITE IN

A SAFE AND WORKMAN-LIKE MANNER (DURING AND AFTER WORKING

HOURS), UNTIL JOB COMPLETION.

37. THE LOADING AND UNLOADING OF ALL PIPE, VALVE, HYDRANTS, MANHOLES

AND OTHER ACCESSORIES SHALL BE IN ACCORDANCE WITH THE

MANUFACTURER’S RECOMMENDED PRACTICES AND SHALL BE PERFORMED

WITH CARE TO AVOID ANY DAMAGE TO THE MATERIAL. THE CONTRACTOR

SHALL LOCATE AND PROVIDE THE NECESSARY STORAGE AREAS FOR

MATERIAL AND EQUIPMENT.

38. PLANS DO NOT EXTEND TO OR INCLUDE DESIGNS OR SYSTEMS

PERTAINING TO THE SAFETY OF THE CONTRACTOR OR ITS EMPLOYEES,

AGENTS, OR REPRESENTATIVES IN THE PERFORMANCE OF THE WORK. THE

SEAL OF THE REGISTERED PROFESSIONAL ENGINEER(S) IS INCORPORATED

IN THE PLANS. THE CONTRACTOR SHALL PREPARE OR OBTAIN THE

APPROPRIATE SAFETY SYSTEMS, INCLUDING CURRENT O.S.H.A.

STANDARDS FOR TRENCH SAFETY SYSTEMS, SEALED BY A LICENSED

PROFESSIONAL ENGINEER. APPROPRIATE TRENCH SAFETY PLANS SHALL

BE SUBMITTED BY THE CONTRACTOR PRIOR TO THE EXECUTION OF A

CONTRACT FOR HIS WORK. THE TRENCH SAFETY SYSTEM SHALL CONFORM

TO THE CITY OF LA PORTE TRENCH ORDINANCE.

39. ALL CHANGES IN DIRECTION FOR SIDEWALK SHALL BE DONE IN A

CURVILINEAR FASHION, NOT ANGULAR.

40. PROVIDE ONE LANE OPEN TO TRAFFIC AT ALL TIMES.

41. THE CONTRACTOR SHALL NOTIFY ALL PROPERTY OWNERS A MINIMUM OF

48 HOURS PRIOR TO STARTING CONSTRUCTION ON ALL DRIVEWAYS.

INGRESS AND EGRESS SHALL BE PROVIDED AT ALL DRIVEWAYS.

42. OPEN TRENCHES SHALL BE ALLOWED ONLY DURING ACTIVE

CONSTRUCTION AND SHALL NOT BE LEFT OPEN OVER NIGHT AND SHALL BE

FENCED OFF/BARRICADED AT END OF SHIFT. NO MORE THAN 100 FEET OF

TRENCH SHALL BE OPEN AT ALL TIME.

43. ALL SUBGRADE SHALL BE PREPARED IN CONFORMANCE WITH

GEOTECHNICAL ENGINEERING REPORT PROVIDED BY DESIGN ENGINEER.

44. CONTACT THE CITY'S PUBLIC IMPROVEMENTS INSPECTOR WITH THE CITY

OF LA PORTE PUBLIC WORKS DEPARTMENT AT 281-471-9650 PRIOR TO

STARTING WORK.

45. ALL TESTING OF UTILITY SYSTEMS SHALL BE WITNESSED BY CITY OF LA

PORTE STAFF. CONTRACTOR TO COORDINATE WITNESS TESTING WITH

CITY OF LA PORTE PROJECT MANAGER.

CITY OF LA PORTE SANITARY SEWER NOTES:

1. ONE FULL SECTION OF WATER LINE CENTERED OVER OR UNDER SANITARY

SEWER CROSSINGS; 2-FOOT MINIMUM CLEARANCE.

2. MINIMUM ONE FULL SECTION OF SANITARY SEWER, 150 PSI LINED PVC PIPE

CENTERED AT THE WATER LINE.

A. CENTER A MINIMUM ONE FULL SECTION OF SANITARY SEWER, 150 PSI

LINED PVC PIPE CENTERED AT WATER LINE, AND PROVIDE RESTRAINED

JOINTS FOR BOTH WATER AND SEWER LINES AT EACH END OF NEW PIPE

SECTION.

B. PROVIDE RESTRAINED JOINTS FOR BOTH WATER AND SANITARY SEWER

LINES AT EACH END OF THE NEW PIPE SECTION.

C. USE CEMENT-STABILIZED SAND BACKFILL FOR ALL PORTIONS OF THE

SEWER WITHIN 9 FEET OF THE WATER LINE, AS MEASURED

PERPENDICULARLY FROM ANY POINT ON THE WATER LINE TO THE

SANITARY SEWER (MINIMUM 2.5 SACKS CEMENT PER CUBIC YARD OF

SAND). THE CEMENT-STABILIZED SAND BEDDING SHALL START AT A

POINT 6 INCHES BELOW THE BOTTOM OF SANITARY SEWER TO 6 INCHES

ABOVE THE TOP OF THE SANITARY SEWER AND ONE QUARTER OF THE

PIPE DIAMETER OR 6 INCHES, WHICHEVER IS GREATER, ON THE SIDE OF

THE SEWER.

3. SANITARY SEWERS SHALL BE CONSTRUCTED, BEDDED, BACKFILLED AND

TESTED IN ACCORDANCE WITH CITY OF LA PORTE STANDARD

SPECIFICATION AND STANDARD CONSTRUCTION DETAILS.

4. ALL MANHOLE RIMS SHALL BE SET 3" (MINIMUM) TO 6" (MAXIMUM) ABOVE

NATURAL GROUND LEVEL AND GROUND SHALL BE SLOPED TO DRAIN AWAY

FROM MANHOLE.

5. ALL SANITARY SEWER MANHOLES TO BE 4' DIAMETER UNLESS OTHERWISE

NOTED.

6. CONTRACTOR TO PROVIDE NECESSARY SHEET PILING DURING MANHOLE

CONSTRUCTION TO INSURE NO DAMAGE TO EXISTING PAVEMENT AND/OR

CURBING. NO SEPARATE PAY.

7. NO CONNECTIONS SHALL BE MADE TO EXISTING SANITARY SEWER LINES

UNTIL ALL PROPOSED SEWER LINES HAVE BEEN THOROUGHLY CLEANED,

TESTED AND APPROVED BY THE ENGINEER. NOTIFY ENGINEER AT LEAST 48

HOURS PRIOR TO CONNECTION TO ANY EXISTING SEWER LINES.

8. WATERLINE/MANHOLE SEPARATION: SANITARY SEWER MANHOLES MUST

BE INSTALLED SO AS TO PROVIDE NINE FEET OF HORIZONTAL CLEARANCE

FROM AN EXISTING OR PROPOSED WATERLINE.

9. SANITARY SEWER MANHOLES: BRICK MANHOLES WILL NOT BE ALLOWED.

ALL MANHOLES WILL BE PRECAST CONCRETE CONFORMING TO CITY OF LA

PORTE SPECIFICATIONS.

10. CONTRACTOR SHALL KEEP RECORD OF LOCATION OF ALL STACKS, STUBS,

ETC.

11. THIS ORGANIZED SEWAGE COLLECTION SYSTEM MUST BE DESIGNED AND

CONSTRUCTED IN ACCORDANCE WITH THE TEXAS COMMISSION ON

ENVIRONMENTAL QUALITY'S RULES 30 TEXAS ADMINISTRATIVE CODE (TAC)

§217.51-217.70, AND THE CITY OF LA PORTE STANDARD SPECIFICATIONS

12. SEWER LINES MUST BE TESTED FROM MANHOLE TO MANHOLE. WHEN A

NEW SEWER LINE IS CONNECTED TO AN EXISTING STUB OR CLEAN-OUT, IT

MUST BE TESTED FROM EXISTING MANHOLE TO NEW MANHOLE. IF A STUB

OR CLEAN-OUT IS USED AT THE END OF THE PROPOSED SEWER LINE, NO

PRIVATE SERVICE ATTACHMENTS MAY BE CONSTRUCTED BETWEEN THE

LAST MANHOLE AND THE CLEAN OUT UNLESS IT CAN BE CERTIFIED AS

CONFORMING WITH THE PROVISIONS OF 30 TAC §217.57.

13. ALL SEWER LINES MUST BE TESTED IN ACCORDANCE WITH 30 TAC §217.57.

THE CONTRACTOR MUST RETAIN COPIES OF ALL TEST RESULTS WHICH

MUST BE MADE AVAILABLE TO THE EXECUTIVE DIRECTOR UPON REQUEST.

THE CONTRACTOR MUST CERTIFY IN WRITING THAT ALL WASTEWATER

LINES HAVE PASSED ALL REQUIRED TESTING TO THE APPROPRIATE

REGIONAL OFFICE WITHIN 30 DAYS OF TEST COMPLETION AND PRIOR TO

USE OF THE NEW COLLECTION SYSTEM. TESTING METHOD SHALL BE

INFILTRATION OR EXFILTRATION TEST, LOW PRESSURE AIR TEST, AND

DEFLECTION TESTING.

14. DEFLECTION TESTING SHALL BE PERFORMED ON ALL FLEXIBLE PIPES. FOR

PIPELINES WITH INSIDE DIAMETERS LESS THAN 27 INCHES, A RIGID

MANDREL MUST BE USED TO MEASURE DEFLECTION. THE TEST MUST BE

CONDUCTED AFTER THE FINAL BACKFILL HAS BEEN IN PLACE AT LEAST 30

DAYS, AND NO PIPE WILL EXCEED A DEFLECTION OF FIVE PERCENT. IF THE

PIPE SHOULD FAIL TO PASS THE DEFLECTION TEST, THE PROBLEM MUST

BE CORRECTED AND A SECOND TEST MUST BE CONDUCTED AFTER FINAL

BACKFILL HAS BEEN IN PLACE AN ADDITIONAL 30 DAYS.

15. ALL MANHOLES MUST BE TESTED TO MEET OR EXCEED THE

REQUIREMENTS OF 30 TAC §217.58.

16. STACKS SHALL BE BUILT IN ACCORDANCE WITH THE CITY OF LA PORTE

STANDARD DETAIL DRAWING REQUIREMENTS. EXACT LOCATION OF THE

STACK SHALL BE SUPPLIED TO THE CITY ENGINEER OF LA PORTE BY THE

PROJECT ENGINEER ON SEALED AS-BUILT DRAWINGS AT COMPLETION OF

CONSTRUCTION. ALL STACKS SHALL BE INSTALLED WITHIN 3% OF PLUMB

RELATIVE TO VERTICAL PLANE AND WILL BE CAPPED AND TERMINATED AT

A DEPTH OF 4 FEET BELOW FINISHED GRADE, UNLESS OTHERWISE

DIRECTED BY THE CITY OF LA PORTE ENGINEER.

17. EACH SANITARY SEWER SERVICE LEAD STUB, PLUGGED WYE BRANCH

OUTLET AND STACK SHALL BE 4" PVC PIPE AT THE TIME OF

CONSTRUCTION, BEGINNING AT THE INVERT ELEVATION OF THE STUB OR

WYE AND AT AN ELEVATION TWO FEET BELOW THE CAPPED TERMINATION

POINT OF THE STACK AND EXTENDING TWO FEET ABOVE FINISHED GRADE.

EACH MARKER SHALL BE PAINTED RED AND LABELED "SANITARY SEWER

STUB", "SANITARY SEWER WYE" OR "SANITARY SEWER STACK" AS

APPROPRIATE WITH STUB, WYE BRANCH OUTLET OR STACK SIZE NOTED.

18. SANITARY SEWER MANHOLE COVERS SHALL BE MINIMUM OF 32 INCHES IN

DIAMETER. ALL SUCH MANHOLE COVERS SHALL HAVE THE CITY OF LA

PORTE EMBLEM AND THE WORDS "LA PORTE" AND "SANITARY SEWER"

CAST IN RAISED RELIEF AS DEPICTED IN CITY OF LA PORTE STANDARD

CONSTRUCTION DETAILS SHEETS. ALL MANHOLE COVERS SHALL BE MADE

IMPERMEABLE TO SURFACE DRAINAGE BY PROVIDING A SOLID COVER.

INFLOW PROTECTORS ARE INCIDENTAL TO THE MANHOLE AND COST SHALL

BE INCORPORATED ACCORDINGLY.

19. ALL NEW MANHOLES SHALL HAVE AN INTERIOR SURFACE COATED WITH

XYPEX ADMIX C-1000. EPOXY COATING OF A MINIMUM 100 MILS THICK MAY

BE USED AS AN ALTERNATIVE TO XYPEX ADMIX C-1000 WITH APPROVAL

FROM CITY OF LA PORTE ENGINEER. BITUMINOUS COATINGS ARE NOT

ALLOWED. COATINGS SHALL BE TESTED WITH A HOLIDAY TESTER. TESTING

SHALL BE IN ACCORDANCE WITH LATEST EDITION OF NACE "STANDARD

RECOMMENDED PRACTICE DISCONTINUITY TESTING OF PROTECTIVE

COATINGS" ALL HOLIDAY TESTERS SHALL BE MARKED AND REPAIRED AND

RETESTED. ALL JOINTS SHALL BE GROUTED SMOOTH PRIOR TO

INSTALLATION OF THE INTERIOR COATING. SHOULD THE MANHOLE BE

PRE-COATED AT THE PLACE OF MANUFACTURING THE JOINT SHALL BE

GROUTED SMOOTH AND THE GROUTED AREA SHALL BE COATED IN

ACCORDANCE WITH THIS SECTION.

20. ALL EXISTING UNDERGROUND UTILITIES ARE NOT GUARANTEED TO BE

COMPLETE OR DEFINITE. THE APPROXIMATE LOCATIONS OF KNOWN

EXISTING UTILITIES ARE SHOWN. CONTRACTOR SHALL DETERMINE THE

EXACT SIZE AND HORIZONTAL AND VERTICAL LOCATIONS IN THE FIELD.

THE CONTRACTOR SHALL NOTIFY ALL OF THE PROPER GOVERNING

AUTHORITIES (STATE, COUNTY, OR CITY) AT LEAST 48 HOURS PRIOR TO

COMMENCING WORK.

21. ANY PERMANENT RELOCATION OF AN EXISTING UTILITY NOT SHOWN ON

THE DRAWINGS SHALL BE APPROVED BY THE CITY OF LA PORTE ENGINEER

PRIOR TO RELOCATION AND SHALL CONFORM TO THE APPLICABLE

STANDARD OF GOVERNING AUTHORITIES.

22. CONTRACTOR SHALL PROTECT EXISTING UNDERGROUND FACILITIES

DURING INSTALLATION OF PROPOSED WORK.

23. IN THE EVENT THAT ANY CONTAMINATED MATERIALS OR SUSPECT

CONTAMINATED MATERIALS ARE ENCOUNTERED DURING CONSTRUCTION

ACTIVITIES, THE CONTRACTOR SHALL CEASE OPERATIONS IN THAT AREA

AND IMMEDIATELY NOTIFY THE ENGINEER.

24. ALL GRAVITY SANITARY SEWERS SHALL BE CONSTRUCTED OF PVC PIPE

(ASTM D-3034, SDR 26 OR THICKER), AS NOTED ON THE DRAWINGS.

25. ALL FORCE MAIN SANITARY SEWERS SHALL BE CONSTRUCTED OF C-900

PVC PIPE, UNLESS OTHERWISE NOTED.

Houston, Texas 77092 9900 Northwest Freeway

SHEET NUMBER

DATE: 09-Oct-2025

SCALE: AS -NOTED

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TO ARRANGE FOR LINES TO BE TURNED OFF OR MOVED, CALL CENTERPOINT

ENERGY AT 713-207-2222.

NOTICE: FOR YOUR SAFETY, YOU ARE REQUIRED BY TEXAS LAW TO CALL 811 AT LEAST

48 HOURS BEFORE YOU DIG SO THAT UNDERGROUND LINE CAN BE MARKED. THIS

VERIFICATION DOES NOT FULFILL YOUR OBLIGATION TO CALL 811.

VERIFICATION OF PRIVATE UTILITY LINES

DATE:

CENTERPOINT ENERGY/NATURAL GAS FACILITIES VERIFICATION ONLY. (THIS

SIGNATURE VERIFIES THAT YOU HAVE SHOWN CNP NATURAL GAS LINES

CORRECTLY -NOT TO BE USED FOR CONFLICT VERIFICATION.) (GAS SERVICE

LINES ARE NOT SHOWN.) SIGNATURE VALID FOR SIX MONTHS.

DATE:

CENTERPOINT ENERGY/UNDERGROUND ELECTRICAL FACILITIES VERIFICATION

ONLY. (THIS SIGNATURE VERIFIES EXISTING UNDERGROUND FACILITIES -NOT

TO BE USED FOR CONFLICT VERIFICATION.) SIGNATURE VALID FOR SIX

MONTHS.

DATE:

APPROVED FOR AT&T TEXAS/SWBT UNDERGROUND CONDUIT FACILITIES ONLY.

SIGNATURE VALID FOR ONE YEAR

AutoCAD SHX Text 10/09/2025

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EDWARD J. PANUSKA III

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AutoCAD SHX Text 129856

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CITY OF LA PORTE SANITARY SEWER NOTES CONTINUED:

26. ALL SEWERS UNDER OR WITHIN TWO (2) FEET OF PROPOSED OR FUTURE

PAVEMENT SHALL BE BACKFILLED WITH 2 SACK CEMENT STABILIZED SAND

PER C.Y. TO BOTTOM OF PROPOSED PAVEMENT.

27. COST OF SPECIAL BACKFILL AND BEDDING IS INCIDENTAL TO THE UNIT

PRICE BID PER LINEAR FOOT.

28. ALL SANITARY SEWERS SHALL BE CONSTRUCTED IN ACCORDANCE WITH

THE TEXAS COMMISSION ON ENVIRONMENTAL QUALITY, CHAPTER 217.51

-217.70, SEWAGE COLLECTION SYSTEMS.

29. CONTRACTOR SHALL OBTAIN ALL CONSTRUCTION PERMITS REQUIRED BY

THE STANDARDS OF THE GOVERNMENTAL AGENCY HAVING JURISDICTION.

30. SANITARY MANHOLES WITHIN THE FLOOD PLAIN SHALL BE RAISED ABOVE

THE 100 YEAR FLOOD ELEVATION NOT SEALED AND VENTED.

31. ALL SLEEVES TO BE FOUR (4) INCH SCHEDULE 40 PVC AND SLEEVES TO BE

EIGHTEEN (18) INCHES BELOW THE…

This is the start of the file's text. The full file is on GovTribe.

File details come from the government source that posted it. Updated Nov 7, 2025.