US Bridges

County Road 13C over Slader Creek

Good

Allegany County, New York · 2.7 MI SW of Canaseraga · Structure no. 000000003330110

Built
1991
34 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
204
2019 count
Owner
County
County Highway Agency

About this bridge

County Road 13C over Slader Creek is a prestressed concrete box beam or girders - multiple carrying County Road 13C over Slader Creek in Allegany County, New York. It was built in 1991, so it is 34 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 204 vehicles a day, roughly 8% of them trucks, projected to reach 286 by 2039. The structure is 67 ft (20.4 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCounty Road 13C
CrossesSlader Creek
Location2.7 MI SW of Canaseraga
RouteCounty Highway 0
Coordinates42.43272, -77.81517
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span64 ft (19.5 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic204 (2019)
Projected traffic286 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 13C over Slader Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is County Road 13C over Slader Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does County Road 13C over Slader Creek carry?

About 204 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is County Road 13C over Slader Creek?

The structure is 67 ft (20.4 m) long with a longest span of 64 ft (19.5 m) and a deck 32 ft wide.

Who owns County Road 13C over Slader Creek?

It is owned by the County Highway Agency.