US Bridges

County Road 18 over California Creek

Good

Allegany County, New York · 3.1 MI SW of Alma · Structure no. 000000003330060

Built
1972
53 years old, rebuilt 2019
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
513
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 18 over California Creek is a prestressed concrete stringer/multi-beam or girder carrying County Road 18 over California Creek in Allegany County, New York. It was built in 1972 and reconstructed in 2019, so it is 53 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 513 vehicles a day, roughly 4% of them trucks, projected to reach 718 by 2038. The structure is 63 ft (19.2 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesCounty Road 18
CrossesCalifornia Creek
Location3.1 MI SW of Alma
RouteCounty Highway 0
CountyAllegany County
StateNew York
Coordinates42.00391, -78.11584
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length63 ft (19.2 m)
Longest span62 ft (18.9 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic513 (2018)
Projected traffic718 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 18 over California Creek built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2019.

What condition is County Road 18 over California 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 November 2023.

How much traffic does County Road 18 over California Creek carry?

About 513 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is County Road 18 over California Creek?

The structure is 63 ft (19.2 m) long with a longest span of 62 ft (18.9 m) and a deck 32 ft wide.

Who owns County Road 18 over California Creek?

It is owned by the County Highway Agency.