US Bridges

S Gaines HWY over I-75

Fair

Chippewa County, Michigan · 6.8 MI S of M-28 · Structure no. 000000000001578

Built
1962
63 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
214 ft
4 main spans
Daily traffic
1,729
2010 count
Owner
State
State Highway Agency

About this bridge

S Gaines HWY over I-75 is a steel stringer/multi-beam or girder carrying S Gaines HWY over I-75 in Chippewa County, Michigan. It was built in 1962, so it is 63 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 1,729 vehicles a day, roughly 10% of them trucks, projected to reach 1,902 by 2025. The structure is 214 ft (65.2 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesS Gaines HWY
CrossesI-75
Location6.8 MI S of M-28
RouteCounty Highway 0
CountyChippewa County
StateMichigan
Coordinates46.29339, -84.48034
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length214 ft (65.2 m)
Longest span70 ft (21.2 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,729 (2010)
Projected traffic1,902 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-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 proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S Gaines HWY over I-75 built?

It was built in 1962, making it 63 years old in 2025.

What condition is S Gaines HWY 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 April 2024.

How much traffic does S Gaines HWY over I-75 carry?

About 1,729 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is S Gaines HWY over I-75?

The structure is 214 ft (65.2 m) long with a longest span of 70 ft (21.2 m) and a deck 35 ft wide.

Who owns S Gaines HWY over I-75?

It is owned by the State Highway Agency.