US Bridges

I 95 NB over Mill Brook

Fair

Aroostook County, Maine · 3.5 MI N JCT US 2 · Structure no. 1388

Built
1976
49 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
2,410
2016 count
Owner
State
State Highway Agency

About this bridge

I 95 NB over Mill Brook is a concrete culvert carrying I 95 NB over Mill Brook in Aroostook County, Maine. It was built in 1976, so it is 49 years old, younger 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 6 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 2,410 vehicles a day, roughly 5% of them trucks, projected to reach 3,374 by 2036. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 95 NB
CrossesMill Brook
Location3.5 MI N JCT US 2
RouteState Highway 95
CountyAroostook County
StateMaine
Coordinates46.14027, -67.98676
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating51 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length24 ft (7.2 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,410 (2016)
Projected traffic3,374 by 2036
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 95 NB over Mill Brook built?

It was built in 1976, making it 49 years old in 2025.

What condition is I 95 NB over Mill Brook 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 November 2023.

How much traffic does I 95 NB over Mill Brook carry?

About 2,410 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is I 95 NB over Mill Brook?

The structure is 24 ft (7.2 m) long with a longest span of 20 ft (6.1 m).

Who owns I 95 NB over Mill Brook?

It is owned by the State Highway Agency.