US Bridges

Main RD over Whitney Brook

Good

Aroostook County, Maine · 0.1 MI N of Boundary L RD · Structure no. 2942

Built
2023
2 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
4,497
2021 count
Owner
State
State Highway Agency

About this bridge

Main RD over Whitney Brook is a prestressed concrete tee beam carrying Main RD over Whitney Brook in Aroostook County, Maine. It was built in 2023, so it is 2 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,497 vehicles a day, roughly 5% of them trucks, projected to reach 6,356 by 2036. The structure is 69 ft (20.9 m) long and 53 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesMain RD
CrossesWhitney Brook
Location0.1 MI N of Boundary L RD
RouteState Highway 1
StateMaine
Coordinates46.42051, -67.84345
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating50 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length69 ft (20.9 m)
Longest span66 ft (20.1 m)
Deck width53 ft (16.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,497 (2021)
Projected traffic6,356 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 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 RD over Whitney Brook built?

It was built in 2023, making it 2 years old in 2025.

What condition is Main RD over Whitney Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Main RD over Whitney Brook carry?

About 4,497 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Main RD over Whitney Brook?

The structure is 69 ft (20.9 m) long with a longest span of 66 ft (20.1 m) and a deck 53 ft wide.

Who owns Main RD over Whitney Brook?

It is owned by the State Highway Agency.