US Bridges

Sunday River RD over Riley Brook

Fair

Oxford County, Maine · 0.4 MI Nly of Bethel · Structure no. 5690

Built
1956
69 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
2,250
2016 count
Owner
State
State Highway Agency

About this bridge

Sunday River RD over Riley Brook is a concrete slab carrying Sunday River RD over Riley Brook in Oxford County, Maine. It was built in 1956, so it is 69 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 2,250 vehicles a day, roughly 5% of them trucks, projected to reach 3,150 by 2036. The structure is 24 ft (7.3 m) long and 34 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesSunday River RD
CrossesRiley Brook
Location0.4 MI Nly of Bethel
RouteCounty Highway 0
CountyOxford County
StateMaine
Coordinates44.46745, -70.82914
Functional classRural Minor 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span21 ft (6.5 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,250 (2016)
Projected traffic3,150 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 Sunday River RD over Riley Brook built?

It was built in 1956, making it 69 years old in 2025.

What condition is Sunday River RD over Riley Brook 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 2024.

How much traffic does Sunday River RD over Riley Brook carry?

About 2,250 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Sunday River RD over Riley Brook?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.5 m) and a deck 34 ft wide.

Who owns Sunday River RD over Riley Brook?

It is owned by the State Highway Agency.