US Bridges

Main ST over Austin Stream

Fair

Somerset County, Maine · 50 Ft N of JCT RTE 16 · Structure no. 2027

Built
1969
56 years old, rebuilt 2016
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
207 ft
3 main spans
Daily traffic
3,290
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over Austin Stream is a steel continuous stringer/multi-beam or girder carrying Main ST over Austin Stream in Somerset County, Maine. It was built in 1969 and reconstructed in 2016, so it is 56 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 3,290 vehicles a day, roughly 5% of them trucks, projected to reach 4,606 by 2036. The structure is 207 ft (63 m) long and 52 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesMain ST
CrossesAustin Stream
Location50 Ft N of JCT RTE 16
RouteState Highway 201
CountySomerset County
StateMaine
Coordinates45.06253, -69.88262
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 alignment7: Better than present minimum criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length207 ft (63 m)
Longest span80 ft (24.4 m)
Deck width52 ft (15.9 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,290 (2016)
Projected traffic4,606 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemYes

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 Austin Stream built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2016.

What condition is Main ST over Austin Stream 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 2024.

How much traffic does Main ST over Austin Stream carry?

About 3,290 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Austin Stream?

The structure is 207 ft (63 m) long with a longest span of 80 ft (24.4 m) and a deck 52 ft wide.

Who owns Main ST over Austin Stream?

It is owned by the State Highway Agency.