US Bridges

I-75 SB Off Ramp over Red Run Drain Path

Good

Oakland County, Michigan · In Madison Heights · Structure no. 000000000014028

Built
2022
3 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
32 ft
1 main span
Daily traffic
4,370
2021 count
Owner
State
State Highway Agency

About this bridge

I-75 SB Off Ramp over Red Run Drain Path is a concrete culvert carrying I-75 SB Off Ramp over Red Run Drain Path in Oakland 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 4,370 vehicles a day, projected to reach 5,026 by 2041. The structure is 32 ft (9.7 m) long.

CarriesI-75 SB Off Ramp
CrossesRed Run Drain Path
LocationIn Madison Heights
RouteInterstate 75
Coordinates42.5064, -83.11601
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length32 ft (9.7 m)
Longest span32 ft (9.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,370 (2021)
Projected traffic5,026 by 2041
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 SB Off Ramp over Red Run Drain Path built?

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

What condition is I-75 SB Off Ramp over Red Run Drain Path 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 April 2023.

How much traffic does I-75 SB Off Ramp over Red Run Drain Path carry?

About 4,370 vehicles per day (2021 count).

How long is I-75 SB Off Ramp over Red Run Drain Path?

The structure is 32 ft (9.7 m) long with a longest span of 32 ft (9.7 m).

Who owns I-75 SB Off Ramp over Red Run Drain Path?

It is owned by the State Highway Agency.