US Bridges

County Road 13C over Slader Creek

Fair

Allegany County, New York · 1.3 MI S of Canaseraga · Structure no. 000000003330090

Built
1974
51 years old, rebuilt 1999
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
46 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 wood or timber stringer/multi-beam or girder carrying County Road 13C over Slader Creek in Allegany County, New York. It was built in 1974 and reconstructed in 1999, so it is 51 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 204 vehicles a day, roughly 8% of them trucks, projected to reach 286 by 2039. The structure is 46 ft (14 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 13C
CrossesSlader Creek
Location1.3 MI S of Canaseraga
RouteCounty Highway 0
CountyAllegany County
StateNew York
Coordinates42.44233, -77.77934
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadOther
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 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 closed1.9 mi (3 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 1974, making it 51 years old in 2025. It was reconstructed in 1999.

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

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

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 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 31 ft wide.

Who owns County Road 13C over Slader Creek?

It is owned by the County Highway Agency.