US Bridges

Hillside Road over Mohawk River

PoorClosed to traffic

Oneida County, New York · 2 MI NW Northwestern · Structure no. 000000002206250

Built
1950
75 years old, rebuilt 1993
Condition
Poor
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
91 ft
1 main span
Daily traffic
234
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Hillside Road over Mohawk River is a prestressed concrete box beam or girders - multiple carrying Hillside Road over Mohawk River in Oneida County, New York. It was built in 1950 and reconstructed in 1993, so it is 75 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 0 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: closed to all traffic.

It carries about 234 vehicles a day, roughly 15% of them trucks, projected to reach 328 by 2041. The structure is 91 ft (27.7 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHillside Road
CrossesMohawk River
Location2 MI NW Northwestern
Coordinates43.35496, -75.38342
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
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection0 FailedOut of service and beyond corrective action.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourScour critical; bridge has failed and is closed
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length91 ft (27.7 m)
Longest span88 ft (26.8 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic234 (2021)
Projected traffic328 by 2041
Trucks15%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$681,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hillside Road over Mohawk River built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1993.

What condition is Hillside Road 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 September 2024.

How much traffic does Hillside Road over Mohawk River carry?

About 234 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Hillside Road over Mohawk River?

The structure is 91 ft (27.7 m) long with a longest span of 88 ft (26.8 m) and a deck 16 ft wide.

Who owns Hillside Road over Mohawk River?

It is owned by the Town or Township Highway Agency.