US Bridges

County Road 21 over Elton Creek

Good

Cattaraugus County, New York · .8 Mile SE of Elton · Structure no. 000000003321560

Built
2001
24 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
520
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 2001, so it is 24 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 520 vehicles a day, roughly 8% of them trucks, projected to reach 728 by 2041. The structure is 98 ft (29.9 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCounty Road 21
CrossesElton Creek
Location.8 Mile SE of Elton
RouteCounty Highway 0
Coordinates42.44149, -78.41735
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating108 US tons
Inventory rating49.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length98 ft (29.9 m)
Longest span95 ft (29 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2021)
Projected traffic728 by 2041
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$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 21 over Elton Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is County Road 21 over Elton 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 2023.

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

About 520 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is County Road 21 over Elton Creek?

The structure is 98 ft (29.9 m) long with a longest span of 95 ft (29 m) and a deck 33 ft wide.

Who owns County Road 21 over Elton Creek?

It is owned by the County Highway Agency.