Amendment A001_TX_FW_LG.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

2. AMENDMENT/MODIFICATION NUMBER

FEDERAL HIGHWAY ADMINISTRATION CENTRAL

FEDERAL LANDS HIGHWAY DIVISION 12300 WEST

DAKOTA AVENUE, SUITE 360 LAKEWOOD,

COLORADO 80228

ATTENTION:

5. PROJECT NUMBER (If applicable)

A001

9A. AMENDMENT OF SOLICITATION NUMBER

6982AF27B000006

9B. DATED (SEE ITEM 11)

10/14/26

10/28/26

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The Invitation for Bids (IFB) is hereby amended to remove pages A-1, A-7, E-2, E-29, E-30, E-34, and E-36 and replace them with the attached revised pages A-1, A-7, E-2, E-29, E-30, E-34, and E-36, incorporated herein.

The Plan Sheet is hereby amended to remove pages A.1, B.1, and H.1 and replace them with the attached revised Plan Sheet pages A.1, B.1, and H.1 and E-36, incorporated herein.

*FAILURE TO ACKNOWLEDGE THIS AMENDMENT IN BLOCK 19 OF THE SF 1442 BY THE DESIGNATED DATE AND HOUR SPECIFIED IN THE

SOLICITATION MAY RESULT IN REJECTION OF YOUR BID (REFER TO ITEM 11.)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

Douglas Whitcomb

TX FW LGA 10(5)

SOLICITATION, OFFER

AND AWARD

(Construction, Alteration or Repair)

1. SOLICITATION NO.

6982AF27B000006

2. TYPE OF SOLICITATION

SEALED BID (IFB)

NEGOTIATED (RFP)

3. DATE ISSUED

10/01/2026

PAGE OF

PAGES

IMPORTANT - THE "OFFER SECTION ON THE REVERSE MUST BE FULLY COMPLETED BY OFFEROR.

4. CONTRACT NO. 5. REQUISITION/PURCHASE REQUEST NO.

HFLCEO260301PR

6. PROJECT NO.

TX FW LGA 10(5)

7. ISSUED BY:

FEDERAL HIGHWAY ADMINISTRATION

CENTRAL FEDERAL LANDS DIVISION

12300 WEST DAKOTA AVENUE, SUITE 167

LAKEWOOD, COLORADO 80228

CODE: 69050001 8. ADDRESS OFFER TO:

Doug Whitcomb, Contract Specialist Federal Highway Administration Central Federal Lands Division Office 12300 W. Dakota Avenue Lakewood, CO 80228

9. FOR INFORMATION CALL

SEE PAGE A-3

A. NAME:

SEE PAGE A-3

B. TELEPHONE NO. (Include area code)

SEE PAGE A-3

SOLICITATION

NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder."

10. THE GOVERNMENT REQUIRES PERFORMANCE OF THE WORK DESCRIBED IN THESE DOCUMENTS:

ROADWAY CONSTRUCTION PROJECT IN STRICT ACCORDANCE WITH:

1. 48 CFR, CHAPTER 1, FEDERAL ACQUISTION REGULATION (FAR), REVOLUTIONARY FAR OVERHAUL (RFO)

AND THE DEPARTMENT OF TRANSPORATION REGULATION (TAR)

2. DEPARTMENT OF LABOR, CONSTRUCTION WAGE RATE REQUIREMENT RATES.

3. SPECIAL CONTRACT REQUIREMENTS.

4. PLANS.

5. BID SCHEDULE.

6. STANDARD SPECIFICATIONS FOR CONSTRUCTION OF ROADS AND BRIDGES ON FEDERAL HIGHWAY

PROJECTS, FP-24, U.S. CUSTOMARY UNITS.

See Subsection 104.04 of the FP-24 for governing order of precedence

11. The Contractor shall begin performance within 10 calendar days and complete it within * calendar days after receiving award notice to proceed. The performance period is mandatory negotiable. *See Page A-3

12A. THE CONTRACTOR MUST FURNISH ANY REQUIRED PERFORMANCE AND PAYMENT BONDS?

(If "YES," indicate within how many calendar days after award in Item 12B.) YES NO

12B. CALENDAR DAYS

13. ADDITIONAL SOLICITATION REQUIREMENTS:

A. Sealed offers in original and 1 copies to perform the work required are due at the place specified in Item 8. by 2:00 p.m. (hour) local time on 11/03/2026 (date). If this is a sealed bid solicitation, offers will be publicly opened at that time. Sealed envelopes containing offers shall be marked to show the offeror's name and address, the solicitation number, and the date and time offers are due.

B. An offer guarantee is is not required.

C. All offers are subject to the (1) work requirements and (2) other provisions and clauses incorporated in the solicitation in full text or by reference.

D. Offers providing less than 60 calendar days for Government acceptance after the date offers are due will not be considered and will be rejected.

STANDARD FORM 1442 (REV. 12/2022)

Prescribed by GSA

FAR (48 CFR) 53.236-1(d)

X

X

X

X

X

A-1

11/04/2026

Amendment A001 10/28/2026

TRANSPORTATION

Douglas Whitcomb Cross-Out

Douglas Whitcomb Cross-Out

A-7

Project Name: Steve Thompson Wildlife Drive

AMD#

Line Item

No.

Pay Item No. Quantity Unit Unit Price ($)

A0010 15101-0000 1 LPSM

A0020 15101-3000 12.33 MILE

A0030 15301-0000 1 LPSM

A0040 15401-0000 1 LPSM

A0050 15501-0000 1 LPSM

A0060 15701-0000 1 LPSM

A0070 15720-0000 1 LPSM

A0080 15802-0000 1 LPSM

A001 A0085 20402-0000 500 CUYD

A0090 30401-5000 13 MILE

A01 00 30402-5100 3000 SQYD

A01 1 0 60101-0000 1 CUYD

A01 20 60920-0000 7 EACH

A01 30 61904-0000 2 EACH

A01 40 62201-0200 40 HOUR

A01 50 62201-0950 40 HOUR

A01 60 62201-2850 40 HOUR

A01 70 62301-0000 40 HOUR

A01 80 62302-1100 30 HOUR

A01 90 63301-0000 27 EACH

A0200 63303-0900 1 EACH

A021 0 63316-1000 1 EACH

Project No. TX FW LGA 10(5)

Schedule: A Schedule Type: Base

REMOVE AND RESET SIGN SYSTEM

SIGN SYSTEM

SIGN, ALUMINUM PANEL, TYPE 3

SHEETING

GENERAL LABOR

SPECIAL LABOR, HIRED SURVEY

SERVICES

WHEEL LOADER, 3 CUBIC YARD

MINIMUM RATED CAPACITY

MOTOR GRADER, 12 FOOT

MINIMUM BLADE

BOLLARD

DUMP TRUCK, 8 CUBIC YARD

MINIMUM CAPACITY

CONCRETE

RESET WHEELSTOP

FULL DEPTH RECLAMATION,

METHOD 2

( 3-I N CH DE PTH )

FULL DEPTH RECLAMATION,

METHOD 2, 3-INCH DEPTH

WATERING FOR DUST CONTROL

SUBEXCAVATI ON

SOIL EROSION CONTROL

STORMWATER POLLUTION

PREVENTION PLAN

CONTRACTOR TESTING

CONSTRUCTION SCHEDULE

CENTERLINE, VERIFICATION AND

STAKING

CONTRACTOR QUALITY CONTROL

Description Supplemental

Description Total Amount ($)

MOBILIZATION

Amendment A001 10/28/2026

E-2

Steve Thompson Wildlife Drive

Section 101. — TERMS, FORMAT, AND DEFINITIONS

AMENDMENT A001

REVISED 10/28/2026

101.02 Specifications Format. Delete the second paragraph and substitute the following:

Division 150 consists of project contract requirements that apply to all contracts. The contractor must perform all work included in Division 150. Work under Division 150 is paid for directly or indirectly according to Subsection 109.05. If there is no pay item in the bid schedule, no direct payment is made.

101.03(a) Acronyms. Add the following:

CDR – Contractor’s Daily Record

101.04 Definitions. Delete the definition of (c) Supplemental agreement under Contract Modification.

101.04 Definitions. Add the following:

Masterworks — A web-based system used by the Government, Contractors, and Subcontractors on this Government contract to prepare CDRs, measurement notes (pay notes and field measurement documentation), and transmit submittals, and documents and drawings.

Section 102. — BID, AWARD, AND EXECUTION OF CONTRACT

102.02A Physical Data. (Added Subsection).

Data and information furnished or referred to below is for the Contractor's information. The Government is not responsible for any interpretation of, or conclusion drawn from the data or information by the Contractor.

(a) The indications of physical conditions on the drawings and in the specifications are the result of site investigations by:

(1) Steve Thompson Wildlife Drive Aggregate Surfacing Recommendations Memorandum dated June 18 October 27, 2026.

(2) Geotechnical Engineering Report, Steve Thompson Wildlife Drive, dated January 8, 2021.

(b) Weather conditions: Contact the National Weather Service.

E-29

Steve Thompson Wildlife Drive

AMENDMENT A001

REVISED 10/28/2026

SWPPP and all accompanying documentation, including inspection reports, water quality sampling results, and annual report submittals, is submitted and accepted after resolution of the final inspection punch list items.

(b) Progress payments for erosion and sediment control measures or devices will be paid as follows:

(1) 80 percent of the pay item amount will be prorated based on total work completed in the contract.

(2) 20 percent of the pay item amount will be paid at final acceptance.

Section 204. — EXCAVATION AND EMBANKMENT

Construction Requirements

204.07 Subexcavation. Delete this Subsection and substitute the following:

Notify the CO of the type and source of backfill material anticipated for subexcavation work at the preparatory phase meeting according to Subsection 153.06(a). Excavate unsuitable materials to the limits shown in the plans, or as directed. Notify the CO of any additional locations requiring subexcavation, or which require a change in surface dimension or depth. Advise the CO of any adverse conditions such as active subsurface water or unstable soil conditions before backfilling.

Dispose of unsuitable material according to Subsection 204.14. Do not subexcavate during periods of inclement weather.

Submit a neat line drawing of the excavated volume for each subexcavation before backfilling.

Place geotextile according to Section 207 before placing backfill materials in the subexcavation.

Place and compact according to Subsection 204.11. Prevent backfill materials from becoming contaminated with unsuitable materials. Replace the excavated structural section with the structural section shown in the typical sections in the plans. Adjust the subgrade elevation to accommodate the replacement structural section.

Measurement

204.16(f) Subexcavation. Add the following:

Do not measure geotextile for payment.

Section 301. — UNTREATED AGGREGATE COURSES

Construction Requirements

301.03 General. Add the following:

E-30

Steve Thompson Wildlife Drive

AMENDMENT A001

REVISED 10/28/2026

For surface course set target values within the gradation range shown in Table 703-1, grading Texas Special.

Section 304. — FULL DEPTH RECLAMATION

Construction Requirements

304.01 Delete this Subsection and substitute the following:

This work consists of pulverizing an existing chip seal and base in-place, adding crushed aggregate if required, mixing this material with water, and shaping and compacting the mix to produce a base.

304.03 General. Add the following:

Before starting full depth reclamation work, remove organic, deleterious, and material larger than 6 inches from the top 3 inches of subgrade. Dispose of material according to subsection 203.07.

Repair soft and unstable areas according to subsection 204.07.

Section 619. — FENCES, GATES, CATTLE GUARDS, AND BOLLARDS20

Construction Requirements

619.09 Bollards. Add the following:

Paint bollards yellow (AMS SAE 595 13507 Highway Yellow) per the MUTCD. Provide samples of finished color for approval by CO prior to fabrication.

Section 625. — TURF ESTABLISHMENT

625.07 Seeding. Add the following:

Apply seed mixes specified in Subsection 713.04 at the rates shown therein.

Seed areas as directed by the CO under Subsection 107.02(e) Seeding.

Apply temporary seeding when permanent seeding is not feasible because of seasonal limitations or as directed by the CO.

Section 633. — PERMANENT TRAFFIC CONTROL

Description

633.01 Add the following:

E-34

Steve Thompson Wildlife Drive

All-in-One (AIO) device ✓

(1) If required for provided appliances or furnishings.

(2) If indoor flush toilets are not available.

(3) Provide service if directed.

(4) Provide generator if electricity is not available.

Section 703. — AGGREGATE

703.01 Fine Aggregate for Concrete. Add the following:

(c) Sand equivalent value, AASHTO T 176, 75 minimum Alternate Method No. 2

703.05(a) General. Delete the paragraph and substitute the following:

703.05(a) General. Provide hard, durable particles or fragments of crushed stone, crushed slag, crushed gravel, caliche, or iron ore conforming to the following:

(1) Los Angeles abrasion, AASHTO T 96 50 percent maximum

(2) Soundness of aggregate using sodium sulfate, AASHTO T 104, 5 cycles

(a) Coarse aggregate 12 percent loss maximum

(b) Fine aggregate 12 percent loss maximum

(3) Fractured faces, AASHTO T 335 (one or more) 70 percent minimum

(4) Without organic matter or lumps or balls of clay.

703.05(b) Subbase or base course aggregate. Delete Subsections (1) and (2) and substitute the following:

(1) Gradation Table 703-1

(2) Liquid limit, AASHTO R 58 and AASHTO T 89 40 maximum

703.05(b) Subbase or base course aggregate. Delete Table 703-1 and substitute the following:

Table 703-1 Target Value Ranges for Subbase, Base, and Surface Course Gradation

Sieve size

Percent by Mass Passing Designated Sieve (AASHTO T 27 & T 11) Grading Designation(1)

Subbase Base Surface A B C D E Texas Special G H

2½ in 100(2) – – – – – – – 2 in 97 to 100 100(2) 100(2) – – 100(2) – –

AMENDMENT A001

REVISED 10/28/2026

E-36

Steve Thompson Wildlife Drive

If a plant species is not available by the producers, increase the other plant species in the recommended seed mixture proportionally by the PLS/acre of the missing plant species.

713.16 Silt Fence. Delete Subsection (a) and substitute the following:

(a) Geotextile. Conform to Table 8 of AASHTO M 288.

Section 718. — TRAFFIC SIGNING AND MARKING MATERIAL

Add the following subsection:

718.19 Speed Bumps

Furnish RubberForm Recycled Products, LLC speed bumps consisting of fiber-reinforced masticated recycled tire rubber. Provide units with factory-fabricated end treatments and dimensions as shown on the plans.

Provide RF-DREA14 earth anchors and mounting hardware recommended by the manufacturer for dirt/gravel road installation and meeting the requirements of Subsection 718.06.

AMENDMENT A001

REVISED 10/28/2026

PROJECT MANAGER

E. BURGOS

Project Location

Scale in Miles N

R

E N

O R

A I

N

N

ST F

R

I

D

D E P A

T

NTOFT A SP

T T

O

U

TE

ATESO

AM

E R

IC

A

M

PROJECT LOCATION

Know what'sbelow.

before you dig.Call

R

811beforeyoudig.com

TEXAS KEY MAP

Amarillo

MEXICO

MEXICO

OF

GULF

Lubbock

WORTH

FT.

DALLAS

HOUSTON

SAN ANTONIO

El Paso

AUSTIN

Del Rio

Laredo Christi

Corpus

San Angelo

OKLAHOMA

MEXICO

NEW

PARK

NATIONAL

BIG BEND

A R K A N S A S

L O

U

IS

IA

N A

Denver, CO 80202-4824

Suite 3400

1670 Broadway

HDR Engineering, Inc.

PLANS PREPARED BY

FOR

FEDERAL HIGHWAY ADMINISTRATION

U. S. DEPARTMENT OF TRANSPORTATION

STEVE THOMPSON WILDLIFE DRIVE

TYPE OF CONSTRUCTION:

permanent signing, and other miscellaneous work.

Road rehabilitation, aggregate surfacing, DESIGN DESIGNATION:

Design Speed

% Truck

ADT (2036 )

ADT (2026)

25 MPH

<1 %

<150

<50

SPECIFICATION:

and Bridges on Federal Highway Projects, FP-24

Standard Specifications for Construction of Roads

PLANS FOR PROPOSED PROJECT

CAMERON COUNTY

TX FW LGA 10(5)

SCHEDULE A 12.33 MILES

APPROVED:

Central Federal Lands Highway Division

Chief of Engineering, Laguna Atascosa National Wildlife Refuge

Project Leader, DATE

DATE

FEDERAL HIGHWAY ADMINISTRATION

U.S. DEPARTMENT OF TRANSPORTATION

DENVER, CO

CENTRAL FEDERAL LANDS HIGHWAY DIVISION

8/12/2026Brandon Jones, by Approval Letter

:4

P

M

O c to b e r

T it le S h e e t

N o n N

S c p w w o r k in g \c e n tr a l0

\d

\A

S h e e ts

.d g n

PROJECT

NUMBER

SHEET

STEVE THOMPSON WILDLIFE DRIVE

A.1

Amendment A001: Add Subexcavation Standard, Subexcavation Pay Item Added1

Amendment A001 10/28/2026 https://811beforeyoudig.com/ https://811beforeyoudig.com

NEOGDEN

OGDEN TX PE

Sheet and Description

B.2 B.2 B.3 B.4 - B.5

Construction

Survey and

Staking

Miscellaneous

Summary

Surfacing

Summary

Permanent

Traffic

Control

BID

SCHEDULE

A0010 15101-0000 MOBILIZATION LPSM ALL

A0020 15210-3000 CENTERLINE, VERIFICATION AND STAKING MILE 12.33 12.33

A0030 15301-0000 CONTRACTOR QUALITY CONTROL LPSM ALL

A0040 15401-0000 CONTRACTOR TESTING LPSM ALL

A0050 15501-0000 CONSTRUCTION SCHEDULE LPSM ALL

A0060 15701-0000 SOIL EROSION CONTROL LPSM ALL

A0070 15720-0000 STORMWATER POLLUTION PREVENTION PLAN LPSM ALL

A0080 15802-0000 WATERING FOR DUST CONTROL LPSM ALL

A001 A0085 20402-0000 SUBEXCAVATION CUYD 500 As approved by CO

A0090 30401-5000 FULL DEPTH RECLAMATION, METHOD 2,(3-INCH DEPTH) MILE 12.33 0.67 13

A0100 30402-5100 FULL DEPTH RECLAMATION, METHOD 2, 3-INCH DEPTH SQYD 2605 395 3000

A0110 60101-0000 CONCRETE CUYD 0.4 0.6 1

A0120 60920-0000 RESET WHEELSTOP EACH 7 7

A0130 61904-0000 BOLLARD EACH 2 2

A0140 62201-0200 DUMP TRUCK, 8 CUBIC YARD MINIMUM CAPACITY HOUR 40

A0150 62201-0950 WHEEL LOADER, 3 CUBIC YARD MINIMUM RATED CAPACITY HOUR 40

A0160 62201-2850 MOTOR GRADER, 12 FOOT MINIMUM BLADE HOUR 40

A0170 62301-0000 GENERAL LABOR HOUR 40

A0180 62302-1100 SPECIAL LABOR, HIRED SURVEY SERVICES HOUR 30

A0190 63301-0000 SIGN SYSTEM EACH 27 27

A0200 63303-0900 SIGN, ALUMINUM PANEL, TYPE 3 SHEETING EACH 1 1

A0210 63316-1000 REMOVE AND RESET SIGN SYSTEM EACH 1 1

A0220 63328-0000 SPEED BUMP EACH 13 13

A0230 63501-0000 TEMPORARY TRAFFIC CONTROL LPSM ALL

A0240 63610-1600 CONDUIT, 2-INCH, PVC LNFT 50 50

A0250 63621-1000 UTILITY BOX, PULLBOX EACH 1 1

A0260 63622-0000 UTILITY TRENCH LNFT 25 25

A0270 63701-0000 FIELD OFFICE EACH 1

A0290A 30110-0000 AGGREGATE SURFACE COURSE,(ALTERNATE 1) TON 6639 861 7500

A0290C 30110-0000 AGGREGATE SURFACE COURSE,(ALTERNATE 2) TON 10396 1104 11500

A0290E 30110-0000 AGGREGATE SURFACE COURSE,(ALTERNATE 3) TON 9957 1043 11000

PAY ITEM

NUMBER

LINE

ITEM

NO.

h tt p s

/h d ri n c .s h a re p o in t.

c o m

/t e a m s /D

L /S h a re d D o c u m e n ts

/G e n e ra l/ .2

P ro j_ D e v /0

E n g in e e r' s E s ti m a te

T X F

W L

G A

(5

S O

Q .x ls m

]S h e e t

-O c t-

:3 A

M

A

M

E

N

D

SUMMARY OF QUANTITIES

Milestone: 100% Design Estimate - A001; Date Completed: 10/27/2026

Remarks and/or Determination of Estimated

Quantity

Estimated

Quantities

ALLOWANCEUNITPAY ITEM DESCRIPTION

PROJECT

B.1

TX FW LGA 10(5)

STEVE THOMPSON WILDLIFE DRIVE

SHEET

NUMBER

Amendment A001 10/28/2026

NEOGDEN

OGDEN TX PE

NO SCALE

for structural section

See typical sections

Finished grade

Backfill according to Section 204

Geotextile filter for structural section

See typical sections

Finished grade according to Section 204

Backfill with material

NOTE:

See bench detail than Bench if greater Varies min.

not construct slopes steeper than 1V:2H unless approved.

slope adjustments to match the subgrade hinge point. Do

At daylight locations, match the existing fill slope or make 5.

roadway cross slope when steeper than 2%.

toward the daylight for drainage, or match the existing subgrade hinge point. Slope the excavation bottom 2%

Daylight to drain when the excavation is within of the 4.

every of subexcavation depth.

bottom layers. Provide a minimum bench width for

Widen top of subexcavation area to allow for bench width in 3.

Do not place backfill material within the structural section.2.

Minimum subexcavation dimensions are1.

TYPICAL SECTION

SUBEXCAVATION

BENCH DETAIL

See note 3

Width of need

(2 ft typ.)

2 ft

1'

2' max.

6 feet wide x 6 feet long.

1-foot

2 feet

4 feet

SUBEXCAVATION

C204-51

FP-24

05/2025

CFL STANDARD

:0

M

O c to b e r

D e t

C c p w w o r k in g \c e n tr a l0

\d

\C

.d g n

OFFICE OF FEDERAL LANDS HIGHWAY

U.S. DEPARTMENT OF TRANSPORTATION, FHWA

SPECIFICATION

APPROVED FOR USE

PROJECT

NUMBER

SHEET

STEVE THOMPSON WILDLIFE DRIVE

H.1

Amendment A001: Add Subexcavation Standard, Subexcavation Pay Item Added1

Amendment A001 10/28/2026