US Bridges

Nadeau RD over I-75

Good

Monroe County, Michigan · 2.8 MI NE of M-50 · Structure no. 000000000007199

Built
2022
3 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
220 ft
2 main spans
Daily traffic
19,950
2020 count
Owner
State
State Highway Agency

About this bridge

Nadeau RD over I-75 is a prestressed concrete stringer/multi-beam or girder carrying Nadeau RD over I-75 in Monroe County, Michigan. It was built in 2022, so it is 3 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 19,950 vehicles a day, roughly 3% of them trucks, projected to reach 22,275 by 2040. The structure is 220 ft (67.1 m) long and 47 ft wide.

Location

Open in Google Maps
CarriesNadeau RD
CrossesI-75
Location2.8 MI NE of M-50
RouteCounty Highway 5859
CountyMonroe County
StateMichigan
Coordinates41.9643, -83.35022
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.8 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length220 ft (67.1 m)
Longest span108 ft (32.9 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,950 (2020)
Projected traffic22,275 by 2040
Trucks3%
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 Nadeau RD over I-75 built?

It was built in 2022, making it 3 years old in 2025.

What condition is Nadeau RD over I-75 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 March 2023.

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

About 19,950 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Nadeau RD over I-75?

The structure is 220 ft (67.1 m) long with a longest span of 108 ft (32.9 m) and a deck 47 ft wide.

Who owns Nadeau RD over I-75?

It is owned by the State Highway Agency.