US Bridges

I81 over CR 137 Rt 370

Fair

Onondaga County, New York · .6 MI NW I81 & Hiawa Blvd · Structure no. 000000001071380

Built
1987
38 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
143 ft
1 main span
Daily traffic
6,755
2019 count
Owner
State
State Highway Agency

About this bridge

I81 over CR 137 Rt 370 is a steel stringer/multi-beam or girder carrying I81 over CR 137 Rt 370 in Onondaga County, New York. It was built in 1987, so it is 38 years old, younger 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 6,755 vehicles a day, roughly 4% of them trucks, projected to reach 6,786 by 2041. The structure is 143 ft (43.6 m) long and 28 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

Location

Open in Google Maps
CarriesI81
CrossesCR 137 Rt 370
Location.6 MI NW I81 & Hiawa Blvd
RouteInterstate 0
CountyOnondaga County
StateNew York
Coordinates43.07629, -76.17399
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107 US tons
Inventory rating64 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span139 ft (42.3 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,755 (2019)
Projected traffic6,786 by 2041
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed4.3 mi (7 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$2.6 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I81 over CR 137 Rt 370 built?

It was built in 1987, making it 38 years old in 2025.

What condition is I81 over CR 137 Rt 370 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 June 2023.

How much traffic does I81 over CR 137 Rt 370 carry?

About 6,755 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is I81 over CR 137 Rt 370?

The structure is 143 ft (43.6 m) long with a longest span of 139 ft (42.3 m) and a deck 28 ft wide.

Who owns I81 over CR 137 Rt 370?

It is owned by the State Highway Agency.