US Bridges

South Bay RD over 81I 81I33033062 RTE I81

Fair

Onondaga County, New York · .6 MI N JCT I81 & SH 481 · Structure no. 000000001031720

Built
1959
66 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
325 ft
4 main spans
Daily traffic
11,614
2021 count
Owner
State
State Highway Agency

About this bridge

South Bay RD over 81I 81I33033062 RTE I81 is a steel stringer/multi-beam or girder carrying South Bay RD over 81I 81I33033062 RTE I81 in Onondaga County, New York. It was built in 1959, so it is 66 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 11,614 vehicles a day, roughly 3% of them trucks, projected to reach 14,108 by 2041. The structure is 325 ft (99.1 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSouth Bay RD
Crosses81I 81I33033062 RTE I81
Location.6 MI N JCT I81 & SH 481
RouteCounty Highway 0
CountyOnondaga County
StateNew York
Coordinates43.14956, -76.11024
Functional classUrban Minor 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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating8.3 US tons
Inventory rating6.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length325 ft (99.1 m)
Longest span100 ft (30.4 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,614 (2021)
Projected traffic14,108 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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$4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was South Bay RD over 81I 81I33033062 RTE I81 built?

It was built in 1959, making it 66 years old in 2025.

What condition is South Bay RD over 81I 81I33033062 RTE I81 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 November 2024.

How much traffic does South Bay RD over 81I 81I33033062 RTE I81 carry?

About 11,614 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is South Bay RD over 81I 81I33033062 RTE I81?

The structure is 325 ft (99.1 m) long with a longest span of 100 ft (30.4 m) and a deck 35 ft wide.

Who owns South Bay RD over 81I 81I33033062 RTE I81?

It is owned by the State Highway Agency.