US Bridges

Dyer Brook RD over B & a RR

FairPosted for load

Aroostook County, Maine · 1.2 MI SE of I95 U-Pass · Structure no. 3187

Built
1936
89 years old, rebuilt 1975
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
279 ft
5 main spans
Daily traffic
560
2016 count
Owner
State
State Highway Agency

About this bridge

Dyer Brook RD over B & a RR is a steel stringer/multi-beam or girder carrying Dyer Brook RD over B & a RR in Aroostook County, Maine. It was built in 1936 and reconstructed in 1975, so it is 89 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. Its operating status is: posted for load restriction.

It carries about 560 vehicles a day, roughly 5% of them trucks, projected to reach 896 by 2036. The structure is 279 ft (84.9 m) long and 35 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesDyer Brook RD
CrossesB & a RR
Location1.2 MI SE of I95 U-Pass
RouteState Highway 2
CountyAroostook County
StateMaine
Coordinates46.08194, -68.18328
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
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
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length279 ft (84.9 m)
Longest span65 ft (19.8 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2016)
Projected traffic896 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed16.8 mi (27 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dyer Brook RD over B & a RR built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1975.

What condition is Dyer Brook RD over B & a RR 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 August 2023.

How much traffic does Dyer Brook RD over B & a RR carry?

About 560 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Dyer Brook RD over B & a RR?

The structure is 279 ft (84.9 m) long with a longest span of 65 ft (19.8 m) and a deck 35 ft wide.

Who owns Dyer Brook RD over B & a RR?

It is owned by the State Highway Agency.