US Bridges

County Road 21 over Elton Creek

Fair

Cattaraugus County, New York · .2 Mile West of Elton · Structure no. 000000003321540

Built
1989
36 years old, rebuilt 2019
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
112 ft
1 main span
Daily traffic
845
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 21 over Elton Creek is a prestressed concrete box beam or girders - multiple carrying County Road 21 over Elton Creek in Cattaraugus County, New York. It was built in 1989 and reconstructed in 2019, so it is 36 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 845 vehicles a day, roughly 17% of them trucks, projected to reach 1,183 by 2041. The structure is 112 ft (34.1 m) long and 34 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesCounty Road 21
CrossesElton Creek
Location.2 Mile West of Elton
RouteCounty Highway 0
Coordinates42.44977, -78.43207
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating21.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length112 ft (34.1 m)
Longest span110 ft (33.5 m)
Deck width34 ft (10.3 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic845 (2021)
Projected traffic1,183 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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$2.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 21 over Elton Creek built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 2019.

What condition is County Road 21 over Elton 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 April 2024.

How much traffic does County Road 21 over Elton Creek carry?

About 845 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is County Road 21 over Elton Creek?

The structure is 112 ft (34.1 m) long with a longest span of 110 ft (33.5 m) and a deck 34 ft wide.

Who owns County Road 21 over Elton Creek?

It is owned by the County Highway Agency.