US Bridges

S Main ST over Sandy River

Fair

Franklin County, Maine · 100 Ft N JCT RTE 4 · Structure no. 5161

Built
1965
60 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
3 main spans
Daily traffic
2,439
2016 count
Owner
State
State Highway Agency

About this bridge

S Main ST over Sandy River is a steel continuous stringer/multi-beam or girder carrying S Main ST over Sandy River in Franklin County, Maine. It was built in 1965, so it is 60 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 6 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 2,439 vehicles a day, roughly 5% of them trucks, projected to reach 3,415 by 2036. The structure is 280 ft (85.2 m) long and 36 ft wide.

Location

Open in Google Maps
CarriesS Main ST
CrossesSandy River
Location100 Ft N JCT RTE 4
RouteCounty Highway 145
CountyFranklin County
StateMaine
Coordinates44.80315, -70.22086
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length280 ft (85.2 m)
Longest span105 ft (32 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,439 (2016)
Projected traffic3,415 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 S Main ST over Sandy River built?

It was built in 1965, making it 60 years old in 2025.

What condition is S Main ST over Sandy 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 December 2023.

How much traffic does S Main ST over Sandy River carry?

About 2,439 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is S Main ST over Sandy River?

The structure is 280 ft (85.2 m) long with a longest span of 105 ft (32 m) and a deck 36 ft wide.

Who owns S Main ST over Sandy River?

It is owned by the State Highway Agency.