US Bridges

Underwood Road over Oil Creek

Good

Cattaraugus County, New York · 0.4 MI East of Maplehurst · Structure no. 000000003321800

Built
1993
32 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
291
2021 count
Owner
County
County Highway Agency

About this bridge

Underwood Road over Oil Creek is a prestressed concrete box beam or girders - multiple carrying Underwood Road over Oil Creek in Cattaraugus County, New York. It was built in 1993, so it is 32 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 291 vehicles a day, roughly 3% of them trucks, projected to reach 407 by 2041. The structure is 74 ft (22.6 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesUnderwood Road
CrossesOil Creek
Location0.4 MI East of Maplehurst
Coordinates42.17976, -78.37329
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length74 ft (22.6 m)
Longest span72 ft (21.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic291 (2021)
Projected traffic407 by 2041
Trucks3%
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 Underwood Road over Oil Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Underwood Road over Oil 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 June 2023.

How much traffic does Underwood Road over Oil Creek carry?

About 291 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Underwood Road over Oil Creek?

The structure is 74 ft (22.6 m) long with a longest span of 72 ft (21.9 m) and a deck 33 ft wide.

Who owns Underwood Road over Oil Creek?

It is owned by the County Highway Agency.