US Bridges

River ST over Mousam River

Fair

York County, Maine · .5 MI N JCT 202 · Structure no. 1350

Built
2009
16 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
35 ft
2 main spans
Daily traffic
4,420
2016 count
Owner
State
State Highway Agency

About this bridge

River ST over Mousam River is a steel culvert carrying River ST over Mousam River in York County, Maine. It was built in 2009, so it is 16 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 4,420 vehicles a day, roughly 5% of them trucks, projected to reach 6,188 by 2036. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRiver ST
CrossesMousam River
Location.5 MI N JCT 202
RouteCounty Highway 0
CountyYork County
StateMaine
Coordinates43.4566, -70.78019
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 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
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.9 US tons
Inventory rating69.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length35 ft (10.7 m)
Longest span16 ft (5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,420 (2016)
Projected traffic6,188 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 River ST over Mousam River built?

It was built in 2009, making it 16 years old in 2025.

What condition is River ST over Mousam 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 July 2023.

How much traffic does River ST over Mousam River carry?

About 4,420 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is River ST over Mousam River?

The structure is 35 ft (10.7 m) long with a longest span of 16 ft (5 m).

Who owns River ST over Mousam River?

It is owned by the State Highway Agency.