US Bridges

Military RD over RTE I81 RTE I81

Fair

Jefferson County, New York · 1.3 MI N JCT I81 & SH 342 · Structure no. 000000001043280

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
331 ft
5 main spans
Daily traffic
375
2018 count
Owner
State
State Highway Agency

About this bridge

Military RD over RTE I81 RTE I81 is a steel stringer/multi-beam or girder carrying Military RD over RTE I81 RTE I81 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 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 375 vehicles a day, roughly 6% of them trucks, projected to reach 525 by 2038. The structure is 331 ft (100.9 m) long and 35 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesMilitary RD
CrossesRTE I81 RTE I81
Location1.3 MI N JCT I81 & SH 342
CountyJefferson County
StateNew York
Coordinates44.05435, -75.91895
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length331 ft (100.9 m)
Longest span73 ft (22.3 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2018)
Projected traffic525 by 2038
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.7 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Military RD over RTE I81 RTE I81 built?

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

What condition is Military RD over RTE I81 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 June 2024.

How much traffic does Military RD over RTE I81 RTE I81 carry?

About 375 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Military RD over RTE I81 RTE I81?

The structure is 331 ft (100.9 m) long with a longest span of 73 ft (22.3 m) and a deck 35 ft wide.

Who owns Military RD over RTE I81 RTE I81?

It is owned by the State Highway Agency.