US Bridges

I 95 NB over Hill Brook

Fair

Penobscot County, Maine · 1.5 MI Wly of Route 69 · Structure no. 5966

Built
1963
62 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
36 ft
1 main span
Daily traffic
10,700
2016 count
Owner
State
State Highway Agency

About this bridge

I 95 NB over Hill Brook is a concrete culvert carrying I 95 NB over Hill Brook in Penobscot County, Maine. It was built in 1963, so it is 62 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 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 10,700 vehicles a day, roughly 5% of them trucks, projected to reach 14,980 by 2036. The structure is 36 ft (10.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 95 NB
CrossesHill Brook
Location1.5 MI Wly of Route 69
RouteState Highway 95
StateMaine
Coordinates44.76979, -69.00099
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 inspectionOctober 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 rating53.9 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (10.9 m)
Longest span31 ft (9.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,700 (2016)
Projected traffic14,980 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 Hill Brook built?

It was built in 1963, making it 62 years old in 2025.

What condition is I 95 NB over Hill 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 October 2023.

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

About 10,700 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is I 95 NB over Hill Brook?

The structure is 36 ft (10.9 m) long with a longest span of 31 ft (9.5 m).

Who owns I 95 NB over Hill Brook?

It is owned by the State Highway Agency.