US Bridges

I-75 over Sulphur Creek

Good

Monroe County, Michigan · 0.5 MI S of Otter Crk RD · Structure no. 000000000013890

Built
2024
1 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
58,600
2017 count
Owner
State
State Highway Agency

About this bridge

I-75 over Sulphur Creek is a concrete culvert carrying I-75 over Sulphur Creek in Monroe County, Michigan. It was built in 2024, so it is 1 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 58,600 vehicles a day, roughly 28% of them trucks, projected to reach 64,700 by 2037. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesI-75
CrossesSulphur Creek
Location0.5 MI S of Otter Crk RD
RouteInterstate 75
Coordinates41.83694, -83.42472
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.6 US tons
Inventory rating72.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length25 ft (7.5 m)
Longest span25 ft (7.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,600 (2017)
Projected traffic64,700 by 2037
Trucks28%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 over Sulphur Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is I-75 over Sulphur Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does I-75 over Sulphur Creek carry?

About 58,600 vehicles per day (2017 count), of which roughly 28% are trucks.

How long is I-75 over Sulphur Creek?

The structure is 25 ft (7.5 m) long with a longest span of 25 ft (7.5 m).

Who owns I-75 over Sulphur Creek?

It is owned by the State Highway Agency.