US Bridges

Left Turn Lane NO1 over I-475

Fair

Genesee County, Michigan · At S Limits of Flint · Structure no. 000000000002688

Built
1971
54 years old, rebuilt 2010
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
140 ft
2 main spans
Daily traffic
3,300
1988 count
Owner
State
State Highway Agency

About this bridge

Left Turn Lane NO1 over I-475 is a steel continuous stringer/multi-beam or girder carrying Left Turn Lane NO1 over I-475 in Genesee County, Michigan. It was built in 1971 and reconstructed in 2010, 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 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 3,300 vehicles a day, projected to reach 3,795 by 2008. The structure is 140 ft (42.7 m) long and 24 ft wide.

Location

Open in Google Maps
CarriesLeft Turn Lane NO1
CrossesI-475
LocationAt S Limits of Flint
RouteCounty Highway 0
CountyGenesee County
StateMichigan
Coordinates42.98046, -83.68207
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span70 ft (21.3 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (1988)
Projected traffic3,795 by 2008
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 Left Turn Lane NO1 over I-475 built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2010.

What condition is Left Turn Lane NO1 over I-475 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 July 2024.

How much traffic does Left Turn Lane NO1 over I-475 carry?

About 3,300 vehicles per day (1988 count).

How long is Left Turn Lane NO1 over I-475?

The structure is 140 ft (42.7 m) long with a longest span of 70 ft (21.3 m) and a deck 24 ft wide.

Who owns Left Turn Lane NO1 over I-475?

It is owned by the State Highway Agency.