US Bridges

I-75 NB over I-75 Bl|cook RD

Fair

Ogemaw County, Michigan · 1.7 MI S of W Branch@col · Structure no. 000000000008429

Built
1972
53 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
201 ft
3 main spans
Daily traffic
6,301
2020 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over I-75 Bl|cook RD is a steel stringer/multi-beam or girder carrying I-75 NB over I-75 Bl|cook RD in Ogemaw County, Michigan. It was built in 1972, so it is 53 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 6,301 vehicles a day, roughly 11% of them trucks, projected to reach 7,246 by 2040. The structure is 201 ft (61.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 NB
CrossesI-75 Bl|cook RD
Location1.7 MI S of W Branch@col
RouteInterstate 75
CountyOgemaw County
StateMichigan
Coordinates44.24573, -84.22551
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating81.8 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length201 ft (61.3 m)
Longest span109 ft (33.2 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,301 (2020)
Projected traffic7,246 by 2040
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 NB over I-75 Bl|cook RD built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-75 NB over I-75 Bl|cook RD 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 October 2023.

How much traffic does I-75 NB over I-75 Bl|cook RD carry?

About 6,301 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is I-75 NB over I-75 Bl|cook RD?

The structure is 201 ft (61.3 m) long with a longest span of 109 ft (33.2 m) and a deck 44 ft wide.

Who owns I-75 NB over I-75 Bl|cook RD?

It is owned by the State Highway Agency.