US Bridges

RTE I81 over Gillette Creek

Fair

Jefferson County, New York · 4.6 MI S JCT I-81 + 411 · Structure no. 000000001094642

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Culvert
Steel
Length
50 ft
3 main spans
Daily traffic
5,435
2020 count
Owner
State
State Highway Agency

About this bridge

RTE I81 over Gillette Creek is a steel culvert carrying RTE I81 over Gillette Creek in Jefferson County, New York. It was built in 1965, so it is 60 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 5,435 vehicles a day, roughly 26% of them trucks, projected to reach 6,472 by 2041. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE I81
CrossesGillette Creek
Location4.6 MI S JCT I-81 + 411
RouteInterstate 81
Coordinates44.12468, -75.88246
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,435 (2020)
Projected traffic6,472 by 2041
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$534,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I81 over Gillette Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is RTE I81 over Gillette 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 I81 over Gillette Creek carry?

About 5,435 vehicles per day (2020 count), of which roughly 26% are trucks.

How long is RTE I81 over Gillette Creek?

The structure is 50 ft (15.2 m) long with a longest span of 13 ft (3.9 m).

Who owns RTE I81 over Gillette Creek?

It is owned by the State Highway Agency.