US Bridges

Main ST over Maine Central Railrd

Fair

Penobscot County, Maine · 200 Ft NE of JCT RTE US2 · Structure no. 3684

Built
1990
35 years old
Condition
Fair
inspected July 2023
Type
Frame
Concrete
Length
46 ft
1 main span
Daily traffic
591
2016 count
Owner
Railroad
Railroad

About this bridge

Main ST over Maine Central Railrd is a concrete frame carrying Main ST over Maine Central Railrd in Penobscot County, Maine. It was built in 1990, so it is 35 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 591 vehicles a day, roughly 5% of them trucks, projected to reach 946 by 2036. The structure is 46 ft (13.9 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesMain ST
CrossesMaine Central Railrd
Location200 Ft NE of JCT RTE US2
RouteCity Street 0
CountyPenobscot County
StateMaine
Coordinates44.83592, -68.70799
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating45 US tons
Inventory rating34.3 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length46 ft (13.9 m)
Longest span40 ft (12.1 m)
Deck width41 ft (12.5 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic591 (2016)
Projected traffic946 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Main ST over Maine Central Railrd built?

It was built in 1990, making it 35 years old in 2025.

What condition is Main ST over Maine Central Railrd in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Main ST over Maine Central Railrd carry?

About 591 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Maine Central Railrd?

The structure is 46 ft (13.9 m) long with a longest span of 40 ft (12.1 m) and a deck 41 ft wide.

Who owns Main ST over Maine Central Railrd?

It is owned by the Railroad and maintained by the State Highway Agency.