US Bridges

Campbell Road over Pinnebog River

FairPosted for load

Huron County, Michigan · Sec. 26-35 Chandler Twp. · Structure no. 000000000003580

Built
1910
115 years old, rebuilt 1963
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
65
2009 count
Owner
County
County Highway Agency

About this bridge

Campbell Road over Pinnebog River is a steel stringer/multi-beam or girder carrying Campbell Road over Pinnebog River in Huron County, Michigan. It was built in 1910 and reconstructed in 1963, so it is 115 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. Its operating status is: posted for load restriction.

It carries about 65 vehicles a day, projected to reach 120 by 2029. The structure is 45 ft (13.7 m) long and 22 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCampbell Road
CrossesPinnebog River
LocationSec. 26-35 Chandler Twp.
RouteCounty Highway 0
CountyHuron County
StateMichigan
Coordinates43.86246, -83.14872
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.4 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2009)
Projected traffic120 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Campbell Road over Pinnebog River built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1963.

What condition is Campbell Road over Pinnebog River 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 September 2023.

How much traffic does Campbell Road over Pinnebog River carry?

About 65 vehicles per day (2009 count).

How long is Campbell Road over Pinnebog River?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 22 ft wide.

Who owns Campbell Road over Pinnebog River?

It is owned by the County Highway Agency.