US Bridges

Maple RD over I-75

Poor

Saginaw County, Michigan · 3.5 MI NW of Genesee Col · Structure no. 000000000009193

Built
1961
64 years old, rebuilt 2006
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
343 ft
4 main spans
Daily traffic
2,212
1997 count
Owner
State
State Highway Agency

About this bridge

Maple RD over I-75 is a steel stringer/multi-beam or girder carrying Maple RD over I-75 in Saginaw County, Michigan. It was built in 1961 and reconstructed in 2006, so it is 64 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,212 vehicles a day, roughly 3% of them trucks, projected to reach 1,280 by 1977. The structure is 343 ft (104.5 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMaple RD
CrossesI-75
Location3.5 MI NW of Genesee Col
RouteCounty Highway 0
CountySaginaw County
StateMichigan
Coordinates43.26868, -83.79436
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length343 ft (104.5 m)
Longest span117 ft (35.6 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,212 (1997)
Projected traffic1,280 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Maple RD over I-75 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2006.

What condition is Maple RD over I-75 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

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

About 2,212 vehicles per day (1997 count), of which roughly 3% are trucks.

How long is Maple RD over I-75?

The structure is 343 ft (104.5 m) long with a longest span of 117 ft (35.6 m) and a deck 34 ft wide.

Who owns Maple RD over I-75?

It is owned by the State Highway Agency.