US Bridges

RTE 20 over Butternut Creek

Fair

Onondaga County, New York · 1.9 MI SE JCT Rts 20 + 11 · Structure no. 000000001015790

Built
1931
94 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
2,372
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 20 over Butternut Creek is a steel stringer/multi-beam or girder carrying RTE 20 over Butternut Creek in Onondaga County, New York. It was built in 1931, so it is 94 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,372 vehicles a day, roughly 9% of them trucks, projected to reach 2,452 by 2041. The structure is 38 ft (11.6 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 20
CrossesButternut Creek
Location1.9 MI SE JCT Rts 20 + 11
RouteU.S. Route 20
CountyOnondaga County
StateNew York
Coordinates42.88099, -76.0827
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length38 ft (11.6 m)
Longest span35 ft (10.6 m)
Deck width38 ft (11.5 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,372 (2020)
Projected traffic2,452 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$792,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20 over Butternut Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is RTE 20 over Butternut Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does RTE 20 over Butternut Creek carry?

About 2,372 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is RTE 20 over Butternut Creek?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.6 m) and a deck 38 ft wide.

Who owns RTE 20 over Butternut Creek?

It is owned by the State Highway Agency.