US Bridges

I-75 NB over Russell Lake RD

Fair

Roscommon County, Michigan · 8 MI S of Roscommon · Structure no. 000000000009024

Built
1971
54 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
135 ft
3 main spans
Daily traffic
4,514
2007 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over Russell Lake RD is a steel stringer/multi-beam or girder carrying I-75 NB over Russell Lake RD in Roscommon County, Michigan. It was built in 1971, so it is 54 years old, older than the Michigan average of 48.3 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 4,514 vehicles a day, roughly 10% of them trucks, projected to reach 7,224 by 2018. The structure is 135 ft (41.1 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 NB
CrossesRussell Lake RD
Location8 MI S of Roscommon
RouteInterstate 75
CountyRoscommon County
StateMichigan
Coordinates44.37818, -84.59023
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length135 ft (41.1 m)
Longest span64 ft (19.5 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,514 (2007)
Projected traffic7,224 by 2018
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 NB over Russell Lake RD built?

It was built in 1971, making it 54 years old in 2025.

What condition is I-75 NB over Russell Lake RD 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 May 2023.

How much traffic does I-75 NB over Russell Lake RD carry?

About 4,514 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is I-75 NB over Russell Lake RD?

The structure is 135 ft (41.1 m) long with a longest span of 64 ft (19.5 m) and a deck 44 ft wide.

Who owns I-75 NB over Russell Lake RD?

It is owned by the State Highway Agency.