US Bridges

Port Inland Road over Bulldog Creek

FairPosted for load

Schoolcraft County, Michigan · 1 MI E of Mcdonald Lake · Structure no. 000000000009702

Built
1932
93 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
23 ft
1 main span
Daily traffic
785
2015 count
Owner
County
County Highway Agency

About this bridge

Port Inland Road over Bulldog Creek is a concrete tee beam carrying Port Inland Road over Bulldog Creek in Schoolcraft County, Michigan. It was built in 1932, so it is 93 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 785 vehicles a day, roughly 1% of them trucks, projected to reach 890 by 2035. The structure is 23 ft (7 m) long and 38 ft wide. If it were closed, the detour would be 124.9 mi (201 km).

CarriesPort Inland Road
CrossesBulldog Creek
Location1 MI E of Mcdonald Lake
RouteCounty Highway 7528
Coordinates45.96911, -85.94411
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width38 ft (11.7 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic785 (2015)
Projected traffic890 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.9 mi (201 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Port Inland Road over Bulldog Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is Port Inland Road over Bulldog Creek 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 June 2023.

How much traffic does Port Inland Road over Bulldog Creek carry?

About 785 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Port Inland Road over Bulldog Creek?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 38 ft wide.

Who owns Port Inland Road over Bulldog Creek?

It is owned by the County Highway Agency.