US Bridges

Amelith RD over I-75

Fair

Bay County, Michigan · 1.0 MI N of Saginaw Col · Structure no. 000000000000600

Built
1960
65 years old, rebuilt 2006
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
204 ft
4 main spans
Daily traffic
528
1993 count
Owner
State
State Highway Agency

About this bridge

Amelith RD over I-75 is a steel stringer/multi-beam or girder carrying Amelith RD over I-75 in Bay County, Michigan. It was built in 1960 and reconstructed in 2006, so it is 65 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 528 vehicles a day, roughly 3% of them trucks, projected to reach 230 by 1977. The structure is 204 ft (62.1 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesAmelith RD
CrossesI-75
Location1.0 MI N of Saginaw Col
RouteCounty Highway 0
CountyBay County
StateMichigan
Coordinates43.53678, -83.94474
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 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 alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length204 ft (62.1 m)
Longest span71 ft (21.6 m)
Deck width33 ft (10.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic528 (1993)
Projected traffic230 by 1977
Trucks3%
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$157,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Amelith RD over I-75 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2006.

What condition is Amelith 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 September 2024.

How much traffic does Amelith RD over I-75 carry?

About 528 vehicles per day (1993 count), of which roughly 3% are trucks.

How long is Amelith RD over I-75?

The structure is 204 ft (62.1 m) long with a longest span of 71 ft (21.6 m) and a deck 33 ft wide.

Who owns Amelith RD over I-75?

It is owned by the State Highway Agency.