US Bridges

Swift River RD over West Branch Swift River

Fair

Oxford County, Maine · 5.7 MI Nly Roxbury T.L. · Structure no. 3208

Built
1993
32 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
49 ft
1 main span
Daily traffic
423
2016 count
Owner
State
State Highway Agency

About this bridge

Swift River RD over West Branch Swift River is a wood or timber slab carrying Swift River RD over West Branch Swift River in Oxford County, Maine. It was built in 1993, so it is 32 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 423 vehicles a day, roughly 5% of them trucks, projected to reach 677 by 2036. The structure is 49 ft (15 m) long and 32 ft wide. If it were closed, the detour would be 52.8 mi (85 km).

Location

Open in Google Maps
CarriesSwift River RD
CrossesWest Branch Swift River
Location5.7 MI Nly Roxbury T.L.
RouteState Highway 17
CountyOxford County
StateMaine
Coordinates44.75369, -70.65151
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length49 ft (15 m)
Longest span45 ft (13.7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 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 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 West Branch Swift River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Swift River RD over West Branch 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 West Branch Swift River carry?

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

How long is Swift River RD over West Branch Swift River?

The structure is 49 ft (15 m) long with a longest span of 45 ft (13.7 m) and a deck 32 ft wide.

Who owns Swift River RD over West Branch Swift River?

It is owned by the State Highway Agency.