US Bridges

Stewart Avenue over Cascadilla Creek

Fair

Tompkins County, New York · 0.8 MI NE of RTE 79 & 96B · Structure no. 000000002210570

Built
1962
63 years old, rebuilt 2001
Condition
Fair
inspected September 2023
Type
Arch - Deck
Steel
Length
155 ft
1 main span
Daily traffic
6,820
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Stewart Avenue over Cascadilla Creek is a steel arch - deck carrying Stewart Avenue over Cascadilla Creek in Tompkins County, New York. It was built in 1962 and reconstructed in 2001, so it is 63 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 6 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 6,820 vehicles a day, roughly 4% of them trucks, projected to reach 8,438 by 2041. The structure is 155 ft (47.2 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesStewart Avenue
CrossesCascadilla Creek
Location0.8 MI NE of RTE 79 & 96B
RouteCity Street 0
CountyTompkins County
StateNew York
Coordinates42.44314, -76.48963
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.6 US tons
Inventory rating30.9 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckOther
Main spans1 (+2 approach)
Design loadH 20
Structure length155 ft (47.2 m)
Longest span110 ft (33.5 m)
Deck width41 ft (12.5 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,820 (2020)
Projected traffic8,438 by 2041
Trucks4%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stewart Avenue over Cascadilla Creek built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2001.

What condition is Stewart Avenue over Cascadilla 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 September 2023.

How much traffic does Stewart Avenue over Cascadilla Creek carry?

About 6,820 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Stewart Avenue over Cascadilla Creek?

The structure is 155 ft (47.2 m) long with a longest span of 110 ft (33.5 m) and a deck 41 ft wide.

Who owns Stewart Avenue over Cascadilla Creek?

It is owned by the City or Municipal Highway Agency.