US Bridges

River ST over Saco River

Good

Oxford County, Maine · 0.4 MI NW of JCT RTE 302 · Structure no. 2933

Built
2006
19 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
284 ft
2 main spans
Daily traffic
2,660
2016 count
Owner
State
State Highway Agency

About this bridge

River ST over Saco River is a steel continuous stringer/multi-beam or girder carrying River ST over Saco River in Oxford County, Maine. It was built in 2006, so it is 19 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,660 vehicles a day, roughly 5% of them trucks, projected to reach 3,724 by 2036. The structure is 284 ft (86.7 m) long and 37 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesRiver ST
CrossesSaco River
Location0.4 MI NW of JCT RTE 302
RouteCounty Highway 113
StateMaine
Coordinates44.0169, -70.9899
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating45 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length284 ft (86.7 m)
Longest span138 ft (42 m)
Deck width37 ft (11.2 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,660 (2016)
Projected traffic3,724 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 River ST over Saco River built?

It was built in 2006, making it 19 years old in 2025.

What condition is River ST over Saco River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does River ST over Saco River carry?

About 2,660 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is River ST over Saco River?

The structure is 284 ft (86.7 m) long with a longest span of 138 ft (42 m) and a deck 37 ft wide.

Who owns River ST over Saco River?

It is owned by the State Highway Agency.