US Bridges

Hansen Avenue over Mohawk River

PoorPosted for load

Herkimer County, New York · 2MI N of ST Rt 5S Exit 22 · Structure no. 000000002255530

Built
1939
86 years old, rebuilt 1991
Condition
Poor
inspected July 2024
Type
Truss - Thru
Steel
Length
145 ft
1 main span
Daily traffic
45
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hansen Avenue over Mohawk River is a steel truss - thru carrying Hansen Avenue over Mohawk River in Herkimer County, New York. It was built in 1939 and reconstructed in 1991, so it is 86 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 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 45 vehicles a day, roughly 9% of them trucks, projected to reach 63 by 2037. The structure is 145 ft (44.2 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHansen Avenue
CrossesMohawk River
Location2MI N of ST Rt 5S Exit 22
RouteCity Street 0
Coordinates43.03801, -74.86535
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating25 US tons
Inventory rating25 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length145 ft (44.2 m)
Longest span140 ft (42.6 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2017)
Projected traffic63 by 2037
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hansen Avenue over Mohawk River built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1991.

What condition is Hansen Avenue over Mohawk 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 July 2024.

How much traffic does Hansen Avenue over Mohawk River carry?

About 45 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is Hansen Avenue over Mohawk River?

The structure is 145 ft (44.2 m) long with a longest span of 140 ft (42.6 m) and a deck 27 ft wide.

Who owns Hansen Avenue over Mohawk River?

It is owned by the City or Municipal Highway Agency.