US Bridges

Bangor RD over Union River

Fair

Hancock County, Maine · 2 MI NW 179 on 1A · Structure no. 2266

Built
1981
44 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
126 ft
1 main span
Daily traffic
15,759
2016 count
Owner
State
State Highway Agency

About this bridge

Bangor RD over Union River is a steel stringer/multi-beam or girder carrying Bangor RD over Union River in Hancock 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 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 15,759 vehicles a day, roughly 5% of them trucks, projected to reach 22,063 by 2036. The structure is 126 ft (38.3 m) long and 43 ft wide. If it were closed, the detour would be 75.8 mi (122 km).

Location

Open in Google Maps
CarriesBangor RD
CrossesUnion River
Location2 MI NW 179 on 1A
RouteState Highway 1
CountyHancock County
StateMaine
Coordinates44.56477, -68.44457
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length126 ft (38.3 m)
Longest span120 ft (36.6 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,759 (2016)
Projected traffic22,063 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.8 mi (122 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bangor RD over Union River built?

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

What condition is Bangor RD over Union 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 November 2024.

How much traffic does Bangor RD over Union River carry?

About 15,759 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Bangor RD over Union River?

The structure is 126 ft (38.3 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.

Who owns Bangor RD over Union River?

It is owned by the State Highway Agency.