US Bridges

Swift River RD over Swift River

Fair

Oxford County, Maine · 2 MI Nly Roxbury T.L. · Structure no. 5847

Built
1959
66 years old, rebuilt 1990
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
154 ft
3 main spans
Daily traffic
578
2016 count
Owner
State
State Highway Agency

About this bridge

Swift River RD over Swift River is a steel stringer/multi-beam or girder carrying Swift River RD over Swift River in Oxford County, Maine. It was built in 1959 and reconstructed in 1990, so it is 66 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 578 vehicles a day, roughly 5% of them trucks, projected to reach 925 by 2036. The structure is 154 ft (46.9 m) long and 31 ft wide. If it were closed, the detour would be 72.7 mi (117 km).

Location

Open in Google Maps
CarriesSwift River RD
CrossesSwift River
Location2 MI Nly Roxbury T.L.
RouteState Highway 17
CountyOxford County
StateMaine
Coordinates44.71781, -70.62886
Functional classRural Major 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
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.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: 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 rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span71 ft (21.6 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic578 (2016)
Projected traffic925 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed72.7 mi (117 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 Swift River RD over Swift River built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1990.

What condition is Swift River RD over Swift 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 October 2024.

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

About 578 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Swift River RD over Swift River?

The structure is 154 ft (46.9 m) long with a longest span of 71 ft (21.6 m) and a deck 31 ft wide.

Who owns Swift River RD over Swift River?

It is owned by the State Highway Agency.