US Bridges

RTE I81 over Spring Brook

Good

Oswego County, New York · 0.7 MI N JCT I-81 NB +13 · Structure no. 000000001068052

Built
1961
64 years old
Condition
Good
inspected October 2024
Type
Culvert
Steel
Length
27 ft
3 main spans
Daily traffic
6,692
2019 count
Owner
State
State Highway Agency

About this bridge

RTE I81 over Spring Brook is a steel culvert carrying RTE I81 over Spring Brook in Oswego County, New York. It was built in 1961, so it is 64 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,692 vehicles a day, roughly 18% of them trucks, projected to reach 7,501 by 2041. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesRTE I81
CrossesSpring Brook
Location0.7 MI N JCT I-81 NB +13
RouteInterstate 81
Coordinates43.5658, -76.11347
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,692 (2019)
Projected traffic7,501 by 2041
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$531,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I81 over Spring Brook built?

It was built in 1961, making it 64 years old in 2025.

What condition is RTE I81 over Spring Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does RTE I81 over Spring Brook carry?

About 6,692 vehicles per day (2019 count), of which roughly 18% are trucks.

How long is RTE I81 over Spring Brook?

The structure is 27 ft (8.2 m) long with a longest span of 7 ft (2.1 m).

Who owns RTE I81 over Spring Brook?

It is owned by the State Highway Agency.