Preliminary Design Report

Common Bridge #1234
over
Raging River

Anytown, Maine

STP-2050(800)
WIN 10000.00

Maine Department of Transportation
Bridge Program

Table Of Contents

Location Map	1

Preliminary Design Report	2

Existing Bridge	4

Summary of Expected Impacts	5

Preliminary Plans	Appendix

Photographs	Appendix

Inspection Reports	Appendix

Existing Bridge Plans	Appendix

Hydraulics Data	Appendix

Miscellaneous Information	Appendix

Traffic and Accident Data	Appendix

Preliminary Cost Estimates	Appendix

Location Map

Anytown, Common Bridge #1234, WIN 10000.00

Route 9 over Raging River

Latitude: 44° 05' 26.43" N, Longitude: 69° 46' 58.26" W

Preliminary Design Report

WIN	10000.00	TOWN	Anytown

BRIDGE NO.	1234	BRIDGE	Common Bridge

Project Manager	Name

DESIGNED BY	ABC	DATE	Click here to enter a date.

Approved by	Date

Approved by	DATE

PROGRAM SCOPE:	Choose an item

PROGRAM DESCRIPTION:	Replacement of deficient wearing surface on Common Bridge (#1234) over Raging River, located 0.16 of a mile easterly of Route 9. This bridge is over 20’ in length.

Project Recommendation: Place 3” bituminous wearing surface on ¼” membrane waterproofing, rehabilitating existing concrete deck as needed. Modify existing expansion joints to accommodate thicker wearing surface and replace seals. Replace two broken bridge rail posts.

Bridge Roadway Section: Two 11’ lanes with 4’ shoulders for a total curb-to-curb width of 30’.

Spans	70’-70’	Skew	30° ahead on left

JURISDICTION	State Highway	NHS	Yes

FUNCTIONAL CLASSIFICATION	CORRIDOR PRIORITY

TRAFFIC:	AADT	ACCIDENT DATA, CRF

AADT	DHV	POSTED SPEED	mph

Complete Streets: Click or tap here to enter text.

Maintenance of Traffic: Maintain two-way traffic with staged construction and temporary traffic signals for one construction season.

Construction Year: 2015	Advertising Date: January 2014

Additional Borings Required? No

Additional Geotechnical Evaluations Required: No

APPROVED DESIGN EXCEPTIONS: Bridge width is less than State Standards in order to match existing corridor width.

Municipal/State Agreement Required? Specify type of agreement if required

Comments by Engineer of Design:

Existing Bridge

Year Built	Span Lengths	Curb to Curb Width

Type of Superstructure: Two-span continuous structure with painted steel beams, composite cast-in-place deck, bituminous wearing surface and membrane waterproofing, and concrete bridge rail.

General Condition: Steel beams are in fair condition with minor section loss along with rusting and extensive failing paint. Concrete deck is in fair condition with some spalling and leakage on the bottom. Wearing surface is in poor condition with extensive cracking and patching. Bridge rail is in very poor condition with much cracking and patching.

Type of Substructure: Mass concrete abutments on H-piles. Mass concrete pier on piles.

General Condition: The concrete for both abutments is cracked and spalled and in poor overall condition. The north wing on abutment #1 is tipped forward slightly. The pier concrete is in fair condition with some cracking and spalling.

Load Ratings:	Operating	Inventory

HL-93	Tons	Tons

Rating Factor

Legal Loads

Controlling Configuration:	Tons

Rating Factor

Controlling Member:	Interior floor beam in flexure

See Appendix for load rating summary

STRUCTURALLY DEFICIENT	FUNCTIONALLY OBSOLETE	N/A

Maintenance Problems: Cracking of bituminous wearing surface. Cracking, spalling, and vehicular damage of concrete bridge rail.

Maintenance Work: Repeated patching of wearing surface and repair of bridge rail.

Previous Structure: A timber covered bridge on granite abutments.

Other Comments: This is a non-historic bridge located in a historic district.

Summary of Expected Impacts

Right of Way	Number of:	Property Owners
Buildings to Be Taken

Type of Acquisitions:	☐	Fee Simple	☐	Easement
☐	Temporary Rights	☐	Temporary Road

Utilities: Fairpoint, CMP, Anytown Sewer, Anytown Water, State Cable

Coast Guard Permit NEEDED? No	FAA Permit NEEDED? No

Environmental Coordination

Team Member: Kristen Chamberlain

NEPA/STIP
Section 106
Section 4(f)
Endangered Species
Essential Fish Habitat
Fish Passage
In-Stream Window
Hazardous Material
Dredge Material
Stormwater/MS4
DEP/LUPC
ACOE
Mitigation
Other

Avoidance & Minimization: