US Bridges

Tannery Loop RD over West Branch Union River

PoorPosted for load

Hancock County, Maine · 1 MI N JCT RTE 9 · Structure no. 3320

Built
1956
69 years old
Condition
Poor
inspected November 2024
Type
Girder and Floorbeam System
Steel
Length
54 ft
1 main span
Daily traffic
54
2016 count
Owner
State
State Highway Agency

About this bridge

Tannery Loop RD over West Branch Union River is a steel girder and floorbeam system carrying Tannery Loop RD over West Branch Union River in Hancock County, Maine. It was built in 1956, so it is 69 years old, older than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 54 vehicles a day, roughly 5% of them trucks, projected to reach 86 by 2036. The structure is 54 ft (16.6 m) long and 15 ft wide.

CarriesTannery Loop RD
CrossesWest Branch Union River
Location1 MI N JCT RTE 9
RouteCity Street 0
StateMaine
Coordinates44.83903, -68.37444
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating23.9 US tons
Inventory rating18.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length54 ft (16.6 m)
Longest span49 ft (15 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2016)
Projected traffic86 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Tannery Loop RD over West Branch Union River built?

It was built in 1956, making it 69 years old in 2025.

What condition is Tannery Loop RD over West Branch Union River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Tannery Loop RD over West Branch Union River carry?

About 54 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Tannery Loop RD over West Branch Union River?

The structure is 54 ft (16.6 m) long with a longest span of 49 ft (15 m) and a deck 15 ft wide.

Who owns Tannery Loop RD over West Branch Union River?

It is owned by the State Highway Agency.