US Bridges

Swetts Bridge RD over Middle Br Mousam Rivr

Fair

York County, Maine · 0.8 MI NE of JCT RTE 4 · Structure no. 1264

Built
1940
85 years old, rebuilt 1990
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
352
2016 count
Owner
State
State Highway Agency

About this bridge

Swetts Bridge RD over Middle Br Mousam Rivr is a steel stringer/multi-beam or girder carrying Swetts Bridge RD over Middle Br Mousam Rivr in York County, Maine. It was built in 1940 and reconstructed in 1990, so it is 85 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 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 352 vehicles a day, roughly 5% of them trucks, projected to reach 563 by 2036. The structure is 62 ft (18.9 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSwetts Bridge RD
CrossesMiddle Br Mousam Rivr
Location0.8 MI NE of JCT RTE 4
RouteCity Street 0
CountyYork County
StateMaine
Coordinates43.46311, -70.70821
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.2 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span59 ft (18.1 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic352 (2016)
Projected traffic563 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 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 Swetts Bridge RD over Middle Br Mousam Rivr built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1990.

What condition is Swetts Bridge RD over Middle Br Mousam Rivr 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 December 2024.

How much traffic does Swetts Bridge RD over Middle Br Mousam Rivr carry?

About 352 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Swetts Bridge RD over Middle Br Mousam Rivr?

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18.1 m) and a deck 26 ft wide.

Who owns Swetts Bridge RD over Middle Br Mousam Rivr?

It is owned by the State Highway Agency.