US Bridges

I-75 over Paper CO Water Mains

Fair

Monroe County, Michigan · In Monroe · Structure no. 000000000007168

Built
1955
70 years old, rebuilt 1975
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
63,962
2007 count
Owner
State
State Highway Agency

About this bridge

I-75 over Paper CO Water Mains is a steel stringer/multi-beam or girder carrying I-75 over Paper CO Water Mains in Monroe County, Michigan. It was built in 1955 and reconstructed in 1975, so it is 70 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 5 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 63,962 vehicles a day, roughly 22% of them trucks, projected to reach 74,644 by 2018. The structure is 51 ft (15.5 m) long and 120 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesI-75
CrossesPaper CO Water Mains
LocationIn Monroe
RouteInterstate 75
CountyMonroe County
StateMichigan
Coordinates41.91189, -83.36511
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span51 ft (15.5 m)
Deck width120 ft (36.6 m)
Roadway width120 ft (36.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63,962 (2007)
Projected traffic74,644 by 2018
Trucks22%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Paper CO Water Mains built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1975.

What condition is I-75 over Paper CO Water Mains 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 March 2023.

How much traffic does I-75 over Paper CO Water Mains carry?

About 63,962 vehicles per day (2007 count), of which roughly 22% are trucks.

How long is I-75 over Paper CO Water Mains?

The structure is 51 ft (15.5 m) long with a longest span of 51 ft (15.5 m) and a deck 120 ft wide.

Who owns I-75 over Paper CO Water Mains?

It is owned by the State Highway Agency.