US Bridges

RTE 20A over Tannery Brook

Poor

Erie County, New York · 0.2 MI W JCT Rts 20A+400 · Structure no. 000000001062869

Built
1969
56 years old
Condition
Poor
inspected December 2024
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
7,939
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 20A over Tannery Brook is a steel culvert carrying RTE 20A over Tannery Brook in Erie County, New York. It was built in 1969, so it is 56 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 7,939 vehicles a day, roughly 6% of them trucks, projected to reach 7,976 by 2041. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesRTE 20A
CrossesTannery Brook
Location0.2 MI W JCT Rts 20A+400
RouteU.S. Route 20A
CountyErie County
StateNew York
Coordinates42.76755, -78.59579
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadOther
Structure length27 ft (8.2 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,939 (2020)
Projected traffic7,976 by 2041
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$699,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20A over Tannery Brook built?

It was built in 1969, making it 56 years old in 2025.

What condition is RTE 20A over Tannery Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does RTE 20A over Tannery Brook carry?

About 7,939 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is RTE 20A over Tannery Brook?

The structure is 27 ft (8.2 m) long with a longest span of 11 ft (3.3 m).

Who owns RTE 20A over Tannery Brook?

It is owned by the State Highway Agency.