US Bridges

Military RD over Three Brook Stream

Fair

Aroostook County, Maine · 0.6 MI N Bridgewater T.L. · Structure no. 3834

Built
1948
77 years old, rebuilt 1989
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
44 ft
1 main span
Daily traffic
5,030
2016 count
Owner
State
State Highway Agency

About this bridge

Military RD over Three Brook Stream is a concrete tee beam carrying Military RD over Three Brook Stream in Aroostook County, Maine. It was built in 1948 and reconstructed in 1989, so it is 77 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 5,030 vehicles a day, roughly 5% of them trucks, projected to reach 7,042 by 2036. The structure is 44 ft (13.4 m) long and 43 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesMilitary RD
CrossesThree Brook Stream
Location0.6 MI N Bridgewater T.L.
RouteState Highway 1
CountyAroostook County
StateMaine
Coordinates46.47401, -67.86841
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length44 ft (13.4 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,030 (2016)
Projected traffic7,042 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 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 Military RD over Three Brook Stream built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1989.

What condition is Military RD over Three Brook 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 April 2024.

How much traffic does Military RD over Three Brook Stream carry?

About 5,030 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Military RD over Three Brook Stream?

The structure is 44 ft (13.4 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns Military RD over Three Brook Stream?

It is owned by the State Highway Agency.