US Bridges

Main ST over Salmon Falls River

Fair

York County, Maine · .3 MI S of S JCT RTE 236 · Structure no. 3027

Built
1971
54 years old, rebuilt 2012
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
164 ft
2 main spans
Daily traffic
10,197
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over Salmon Falls River is a steel continuous stringer/multi-beam or girder carrying Main ST over Salmon Falls River in York County, Maine. It was built in 1971 and reconstructed in 2012, so it is 54 years old, older 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 6 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 10,197 vehicles a day, roughly 5% of them trucks, projected to reach 14,276 by 2036. The structure is 164 ft (50 m) long and 52 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesMain ST
CrossesSalmon Falls River
Location.3 MI S of S JCT RTE 236
RouteState Highway 4
StateMaine
Coordinates43.22721, -70.81151
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length164 ft (50 m)
Longest span80 ft (24.4 m)
Deck width52 ft (16 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,197 (2016)
Projected traffic14,276 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Main ST over Salmon Falls River built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2012.

What condition is Main ST over Salmon Falls River 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 August 2023.

How much traffic does Main ST over Salmon Falls River carry?

About 10,197 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Salmon Falls River?

The structure is 164 ft (50 m) long with a longest span of 80 ft (24.4 m) and a deck 52 ft wide.

Who owns Main ST over Salmon Falls River?

It is owned by the State Highway Agency.