attachment-1-bid-57-26.pdf

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Attached to
Prefabricated Bridge
Solicitation number
Bid 57-26
Issued by
Cheshire County, New Hampshire

About this file

This is a final design drawings document prepared by HEB Engineers, Inc. for the U.S. Department of Agriculture Forest Service, Region 9, in collaboration with the New Hampshire Department of Natural and Cultural Resources. The project involves the design and construction of two prefabricated bridges crossing Langdon Brook and an unnamed tributary on Forest Road 244 in the Saco Ranger District of the White Mountain National Forest, located in Chatham, Carroll County, New Hampshire. The design package includes comprehensive engineering plans and specifications for two modular bridges with H-15 loading capacity, a 14-foot clear deck width, and maximum 17-foot overall width, constructed with Southern Yellow Pine decking and steel infrastructure. The drawings encompass 23 sheets detailing roadway plans and profiles, bridge elevations and substructure layouts, typical roadway sections, and erosion and sediment control plans. The design incorporates extensive environmental protection mechanisms, including detailed erosion control strategies and channel sections designed to minimize ecological impact on the stream crossings. Bid responses were required by November 4, 2025, at 10:30 AM Eastern Time, with delivery of the completed prefabricated bridges scheduled for Spring 2026.

The bridges must be transportable, capable of being split or folded for standard trailer transport, and designed for repeated deployments across multiple sites. Structural steel is required to be of domestic origin, with all welders performing structural work required to be certified. The procurement specifies that vendors must provide comprehensive fabrication drawings and demonstrate prior experience in portable bridge design. The solicitation encourages the use of SmartWay Transport partners for shipping and consideration of environmentally preferable materials. Pricing evaluation is based on lowest total cost, with vendors required to complete a detailed offer sheet. The solicitation does not explicitly specify set-aside designations for disadvantaged enterprises or minority-owned businesses, and the procurement remains open to qualified vendors with demonstrated bridge fabrication capabilities. While specific budget ranges are not detailed in the design documents, the project's complexity and scope suggest a significant capital investment for the state procurement process.

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Text version

EASTERN REGION

US Department of Agriculture Forest Service

CORRIDOR 19 BRIDGES

White Mountain National Forest Saco Ranger District

SHEET NAME

FOREST DEVELOPMENT PROJECT

PROJECT

LOCATION

Region Nine

1 C0.01 COVER SHEET

2 C0.02 GENERAL NOTES

3 C1.11 LANGDON BROOK ROADWAY PLAN & PROFILE

4 C1.12 TRIBUTARY ROADWAY PLAN & PROFILE

5 C3.01 TYPICAL ROADWAY SECTION

6 C3.20 ROADWAY SECTIONS 0+80 - 3+90

7 C3.21 ROADWAY SECTIONS 4+00 - 6+00

8 S1.01 LANGDON BROOK BRIDGE PLAN & ELEVATION

9 S1.02 TRIBUTARY BRIDGE PLAN & ELEVATION

10 S1.21 LANGDON BROOK SUBSTRUCTURE PLAN & SURVEY

LAYOUT

11 S1.22 TRIBUTARY SUBSTRUCTURE PLAN & SURVEY

LAYOUT

12 S5.11 SUBSTRUCTURE SECTION & ELEVATIONOVER LANGDON BROOK

Scale: 1"=5000'

Chatham, Carroll County, NH

FINAL DESIGN DRAWINGS

TITLE

AND UNNAMED TRIBUTARY Supplemental Plans

1 V1.01 EXISTING - FEATURES PLAN

2 W0.01 ENVIRONMENTAL RESOURCE NOTES

3 W1.11 LANGDON BROOK PLAN & PROFILE

4 W1.12 TRIBUTARY PLAN & PROFILE

5 W1.21 LANGDON BROOK EROSION & SEDIMENT CONTROL PLAN

6 W1.22 TRIBUTARY EROSION & SEDIMENT CONTROL PLAN

7 W3.01 TYPICAL CHANNEL SECTIONS

8 W3.11 LANGDON BROOK CHANNEL SECTIONS

9 W3.12 TRIBUTARY CHANNEL SECTIONS

10 W5.11 EROSION & SEDIMENT CONTROL DETAILS

Structure #092200000035580, McDonough Brook 1 Latitude: 44.15719, Longitude: -71.03632

Structure #092200000035579, McDonough Brook 2 Latitude: 44.15779, Longitude: -71.03698

FR 244

May 30, 2025

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U.S. DEPARTMENT OF AGRICULTURE

FOREST SERVICE

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

Drawing Title

Designed/Drawn

Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

N.T.S.

C0.02

General Notes

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1"=10'

C1.11

Langdon Brook Roadway Plan & Profile

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1"=10'

C1.12

Tributary Roadway Plan & Profile

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

3/4"=1'-0"

C3.01

Typical Roadway Section

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1"=10'

C3.20

Roadway Sections 0+80 - 3+90

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1"=10'

C3.21

Roadway Sections 4+00 - 6+00

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1/4" = 1'-0"

S1.01

Langdon Brook Bridge Plan & Elevation

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1/4"=1'-0"

S1.02

Tributary Bridge Plan & Elevation

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R-9

Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

Drawing Title

Designed/Drawn

Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1/4"=1'-0"

S1.21

Langdon Brook Substructure Plan & Survey Layout

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

05/30/2025

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1/4"=1'-0"

S1.22

Tributary Substructure Plan & Survey Layout

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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CAD File No.

Date

Scale

Project

Drawing No.

COB

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2023-004

05/30/2025

No.

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General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

AS NOTED

S5.11

Substructure Section & Elevation

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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2023-004

12/03/2024

No.

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General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

N/A

W0.01

Environmental Resource Notes

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

12/03/2024

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1"=10'

W1.11

Langdon Brook Plan and Profile

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

12/03/2024

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1"=10'

W1.12

Tributary Plan and Profile

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

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CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

12/03/2024

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1"=10'

W1.21

Langdon Brook Erosion & Sediment Control Plan

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CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

12/03/2024

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1"=10'

W1.22

Tributary Erosion & Sediment Control Plan

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CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

12/03/2024

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1" = 1'-0"

W3.01

Typical Channel Sections

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

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CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

12/03/2024

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1" = 10'

W3.11

Langdon Brook Channel Sections

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

Drawing Title

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Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

12/03/2024

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

1" = 10'

W3.12

Tributary Channel Sections

P:

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Corridor 19 Bridges over Langdon Brook & Unnamed Tributary

White Mountain National Forest Saco Ranger District

Drawing Title

Designed/Drawn

Checked

CAD File No.

Date

Scale

Project

Drawing No.

COB

JKM

2023-004

12/03/2024

No.

Revision/Issue Date

General Notes

HEB Engineers, Inc.

PO Box 440, 2605 White Mountain Hwy.

North Conway, NH 03860 www.hebengineers.com Office (603) 356-6936

As Noted

W5.11

Erosion & Sediment Control Details

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Sheets and Views
2023-004 C0.01 Cover Sheet-Cover Sheet
2023-004 C0.02 General Notes-C0.02
2023-004 C1.0x Roadway Plan & Profile-C1.11
2023-004 C1.0x Roadway Plan & Profile-C1.12
2023-004 C3.01 Typical Roadway Section-C3.01
2023-004 C3.20 Roadway Sections-Roadway Section 0+80-3+90
2023-004 C3.20 Roadway Sections-Roadway Sections 4+00-6+00
2023-004 S1.01 Bridge Plan & Elevation-S1.01
2023-004 S1.01 Bridge Plan & Elevation-S1.02
2023-004 S1.2x Substructure Plan-S1.21 Substructure Plan
2023-004 S1.2x Substructure Plan-S1.22 Substructure Plan
2023-004 S5.11 Substructure Section-S5.11
2025-08-21T08:10:36-0400
JAMES INNES
2025-08-25T09:26:26-0400
WARREN LEES
2025-08-25T16:01:33-0400
DEREK IBARGUEN
Regional Bridge Program Mgr R09
2025-09-10T09:39:44-0500
R09 Regional Office
Jeffrey W. Dulka
I have reviewed this document
2025-09-10T10:31:09-0500
JONATHAN HEYL

File details come from the government source that posted it. Updated .