US Bridges

Slate Rock Road over Wilson Creek

PoorPosted for load

Ontario County, New York · 3.2 MI S of Geneva · Structure no. 000000002211690

Built
1925
100 years old, rebuilt 1978
Condition
Poor
inspected June 2024
Type
Slab
Wood or Timber
Length
32 ft
1 main span
Daily traffic
61
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Slate Rock Road over Wilson Creek is a wood or timber slab carrying Slate Rock Road over Wilson Creek in Ontario County, New York. It was built in 1925 and reconstructed in 1978, so it is 100 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 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 61 vehicles a day, roughly 7% of them trucks, projected to reach 85 by 2041. The structure is 32 ft (9.8 m) long and 26 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSlate Rock Road
CrossesWilson Creek
Location3.2 MI S of Geneva
Coordinates42.81804, -77.00061
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15 US tons
Inventory rating15 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckNot applicable
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61 (2021)
Projected traffic85 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$616,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Slate Rock Road over Wilson Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1978.

What condition is Slate Rock Road over Wilson Creek 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 June 2024.

How much traffic does Slate Rock Road over Wilson Creek carry?

About 61 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Slate Rock Road over Wilson Creek?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 26 ft wide.

Who owns Slate Rock Road over Wilson Creek?

It is owned by the Town or Township Highway Agency.