US Bridges

Swift River RD over Swift River

Poor

Oxford County, Maine · 5.9 MI Nly Roxbury T.L. · Structure no. 2587

Built
1931
94 years old, rebuilt 1942
Condition
Poor
inspected October 2024
Type
Tee Beam
Concrete
Length
104 ft
1 main span
Daily traffic
423
2016 count
Owner
State
State Highway Agency

About this bridge

Swift River RD over Swift River is a concrete tee beam carrying Swift River RD over Swift River in Oxford County, Maine. It was built in 1931 and reconstructed in 1942, so it is 94 years old, older than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 423 vehicles a day, roughly 5% of them trucks, projected to reach 677 by 2036. The structure is 104 ft (31.8 m) long and 23 ft wide. If it were closed, the detour would be 52.8 mi (85 km).

CarriesSwift River RD
CrossesSwift River
Location5.9 MI Nly Roxbury T.L.
RouteState Highway 17
StateMaine
Coordinates44.75616, -70.65094
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.5 US tons
Inventory rating20.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadH 15
Structure length104 ft (31.8 m)
Longest span50 ft (15.2 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic423 (2016)
Projected traffic677 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.8 mi (85 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 Swift River RD over Swift River built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1942.

What condition is Swift River RD over Swift River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Swift River RD over Swift River carry?

About 423 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Swift River RD over Swift River?

The structure is 104 ft (31.8 m) long with a longest span of 50 ft (15.2 m) and a deck 23 ft wide.

Who owns Swift River RD over Swift River?

It is owned by the State Highway Agency.