US Bridges

Gilman Falls Av over Stillwater River

Fair

Penobscot County, Maine · .1 MI SE JCT 16-43 · Structure no. 2314

Built
1981
44 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
299 ft
3 main spans
Daily traffic
4,543
2016 count
Owner
State
State Highway Agency

About this bridge

Gilman Falls Av over Stillwater River is a steel continuous stringer/multi-beam or girder carrying Gilman Falls Av over Stillwater River in Penobscot County, Maine. It was built in 1981, so it is 44 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 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 4,543 vehicles a day, roughly 5% of them trucks, projected to reach 6,360 by 2036. The structure is 299 ft (91 m) long and 43 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesGilman Falls Av
CrossesStillwater River
Location.1 MI SE JCT 16-43
RouteCounty Highway 43
CountyPenobscot County
StateMaine
Coordinates44.95072, -68.69594
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length299 ft (91 m)
Longest span113 ft (34.4 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,543 (2016)
Projected traffic6,360 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Gilman Falls Av over Stillwater River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Gilman Falls Av over Stillwater River 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 September 2024.

How much traffic does Gilman Falls Av over Stillwater River carry?

About 4,543 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Gilman Falls Av over Stillwater River?

The structure is 299 ft (91 m) long with a longest span of 113 ft (34.4 m) and a deck 43 ft wide.

Who owns Gilman Falls Av over Stillwater River?

It is owned by the State Highway Agency.