US Bridges

Stillwater Av over Interstate 95 NB & SB

Fair

Penobscot County, Maine · Interchange 193 · Structure no. 6058

Built
1965
60 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
310 ft
4 main spans
Daily traffic
12,354
2016 count
Owner
State
State Highway Agency

About this bridge

Stillwater Av over Interstate 95 NB & SB is a steel continuous stringer/multi-beam or girder carrying Stillwater Av over Interstate 95 NB & SB in Penobscot County, Maine. It was built in 1965, so it is 60 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 12,354 vehicles a day, roughly 5% of them trucks, projected to reach 17,296 by 2036. The structure is 310 ft (94.6 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStillwater Av
CrossesInterstate 95 NB & SB
LocationInterchange 193
RouteState Highway 0
CountyPenobscot County
StateMaine
Coordinates44.90281, -68.69176
Functional classRural Minor Arterial

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.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length310 ft (94.6 m)
Longest span85 ft (25.9 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,354 (2016)
Projected traffic17,296 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Stillwater Av over Interstate 95 NB & SB built?

It was built in 1965, making it 60 years old in 2025.

What condition is Stillwater Av over Interstate 95 NB & SB 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 Stillwater Av over Interstate 95 NB & SB carry?

About 12,354 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Stillwater Av over Interstate 95 NB & SB?

The structure is 310 ft (94.6 m) long with a longest span of 85 ft (25.9 m) and a deck 35 ft wide.

Who owns Stillwater Av over Interstate 95 NB & SB?

It is owned by the State Highway Agency.