US Bridges

Michael Road over RTE I81

Fair

Jefferson County, New York · 2.0 MI N Rts I-81 + 178 · Structure no. 000000001032090

Built
1959
66 years old, rebuilt 2010
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
122 ft
1 main span
Daily traffic
318
2017 count
Owner
State
State Highway Agency

About this bridge

Michael Road over RTE I81 is a prestressed concrete box beam or girders - multiple carrying Michael Road over RTE I81 in Jefferson County, New York. It was built in 1959 and reconstructed in 2010, 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 318 vehicles a day, roughly 17% of them trucks, projected to reach 445 by 2037. The structure is 122 ft (37.2 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMichael Road
CrossesRTE I81
Location2.0 MI N Rts I-81 + 178
CountyJefferson County
StateNew York
Coordinates43.84078, -76.02506
Functional classRural 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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 rating80 US tons
Inventory rating40 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span42 ft (12.8 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic318 (2017)
Projected traffic445 by 2037
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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$1.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Michael Road over RTE I81 built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2010.

What condition is Michael Road over 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 August 2024.

How much traffic does Michael Road over RTE I81 carry?

About 318 vehicles per day (2017 count), of which roughly 17% are trucks.

How long is Michael Road over RTE I81?

The structure is 122 ft (37.2 m) long with a longest span of 42 ft (12.8 m) and a deck 34 ft wide.

Who owns Michael Road over RTE I81?

It is owned by the State Highway Agency.