US Bridges

Main ST over South Branch Dead River

Fair

Franklin County, Maine · 0.8 MI N of JCT RTE 16 · Structure no. 3263

Built
1988
37 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
100 ft
1 main span
Daily traffic
1,527
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over South Branch Dead River is a steel stringer/multi-beam or girder carrying Main ST over South Branch Dead River in Franklin County, Maine. It was built in 1988, so it is 37 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 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 1,527 vehicles a day, roughly 5% of them trucks, projected to reach 2,291 by 2036. The structure is 100 ft (30.6 m) long and 37 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesMain ST
CrossesSouth Branch Dead River
Location0.8 MI N of JCT RTE 16
RouteState Highway 27
StateMaine
Coordinates45.15214, -70.44652
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating52.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length100 ft (30.6 m)
Longest span95 ft (29 m)
Deck width37 ft (11.3 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,527 (2016)
Projected traffic2,291 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 Main ST over South Branch Dead River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Main ST over South Branch Dead 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 May 2024.

How much traffic does Main ST over South Branch Dead River carry?

About 1,527 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over South Branch Dead River?

The structure is 100 ft (30.6 m) long with a longest span of 95 ft (29 m) and a deck 37 ft wide.

Who owns Main ST over South Branch Dead River?

It is owned by the State Highway Agency.