US Bridges

RTE 20A over Cayuga Creek

Poor

Wyoming County, New York · .7 MI E JCT US 20A & SH77 · Structure no. 000000001016120

Built
1928
97 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
3,581
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 20A over Cayuga Creek is a steel stringer/multi-beam or girder carrying RTE 20A over Cayuga Creek in Wyoming County, New York. It was built in 1928, so it is 97 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 3,581 vehicles a day, roughly 9% of them trucks, projected to reach 3,603 by 2041. The structure is 39 ft (11.9 m) long and 33 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesRTE 20A
CrossesCayuga Creek
Location.7 MI E JCT US 20A & SH77
RouteU.S. Route 20A
Coordinates42.771, -78.37554
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating99 US tons
Inventory rating59 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span37 ft (11.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,581 (2021)
Projected traffic3,603 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$1.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20A over Cayuga Creek built?

It was built in 1928, making it 97 years old in 2025.

What condition is RTE 20A over Cayuga Creek 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 June 2024.

How much traffic does RTE 20A over Cayuga Creek carry?

About 3,581 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is RTE 20A over Cayuga Creek?

The structure is 39 ft (11.9 m) long with a longest span of 37 ft (11.3 m) and a deck 33 ft wide.

Who owns RTE 20A over Cayuga Creek?

It is owned by the State Highway Agency.