US Bridges

Riley St. over Tannery Brook

Good

Erie County, New York · 0.5 Mi. E of East Aurora · Structure no. 000000002260790

Built
1974
51 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
1,206
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Riley St. over Tannery Brook is a concrete culvert carrying Riley St. over Tannery Brook in Erie County, New York. It was built in 1974, 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 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 1,206 vehicles a day, roughly 3% of them trucks, projected to reach 1,688 by 2040. The structure is 29 ft (8.8 m) long and 55 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRiley St.
CrossesTannery Brook
Location0.5 Mi. E of East Aurora
Coordinates42.77004, -78.61143
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating58 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span25 ft (7.6 m)
Deck width55 ft (16.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,206 (2020)
Projected traffic1,688 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Riley St. over Tannery Brook built?

It was built in 1974, making it 51 years old in 2025.

What condition is Riley St. over Tannery Brook 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 May 2024.

How much traffic does Riley St. over Tannery Brook carry?

About 1,206 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Riley St. over Tannery Brook?

The structure is 29 ft (8.8 m) long with a longest span of 25 ft (7.6 m) and a deck 55 ft wide.

Who owns Riley St. over Tannery Brook?

It is owned by the Town or Township Highway Agency.