US Bridges

Main ST over Molunkus Stream

Fair

Aroostook County, Maine · 1.2 MI E I95 · Structure no. 2899

Built
1949
76 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,830
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over Molunkus Stream is a concrete slab carrying Main ST over Molunkus Stream in Aroostook County, Maine. It was built in 1949, so it is 76 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 1,830 vehicles a day, roughly 5% of them trucks, projected to reach 2,745 by 2036. The structure is 32 ft (9.8 m) long and 34 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesMain ST
CrossesMolunkus Stream
Location1.2 MI E I95
RouteState Highway 158
CountyAroostook County
StateMaine
Coordinates45.87274, -68.38685
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
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 inspectionMay 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating74.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length32 ft (9.8 m)
Longest span28 ft (8.5 m)
Deck width34 ft (10.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,830 (2016)
Projected traffic2,745 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed19.9 mi (32 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 Main ST over Molunkus Stream built?

It was built in 1949, making it 76 years old in 2025.

What condition is Main ST over Molunkus 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 May 2024.

How much traffic does Main ST over Molunkus Stream carry?

About 1,830 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Molunkus Stream?

The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 34 ft wide.

Who owns Main ST over Molunkus Stream?

It is owned by the State Highway Agency.