US Bridges

Lake RD over I-75

Fair

Genesee County, Michigan · 2.0 MI N of M-57 · Structure no. 000000000002514

Built
1959
66 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
206 ft
4 main spans
Daily traffic
1,000
1996 count
Owner
State
State Highway Agency

About this bridge

Lake RD over I-75 is a steel stringer/multi-beam or girder carrying Lake RD over I-75 in Genesee County, Michigan. It was built in 1959, so it is 66 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 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 1,800 by 2016. The structure is 206 ft (62.8 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLake RD
CrossesI-75
Location2.0 MI N of M-57
RouteCounty Highway 0
CountyGenesee County
StateMichigan
Coordinates43.2063, -83.76887
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length206 ft (62.8 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (1996)
Projected traffic1,800 by 2016
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lake RD over I-75 built?

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

What condition is Lake RD over I-75 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 Lake RD over I-75 carry?

About 1,000 vehicles per day (1996 count), of which roughly 2% are trucks.

How long is Lake RD over I-75?

The structure is 206 ft (62.8 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns Lake RD over I-75?

It is owned by the State Highway Agency.