US Bridges

I-69 SB over Hog Creek

Fair

Branch County, Michigan · 6.7 MI N of US-12 · Structure no. 000000000001090

Built
1967
58 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
96 ft
2 main spans
Daily traffic
10,926
2007 count
Owner
State
State Highway Agency

About this bridge

I-69 SB over Hog Creek is a prestressed concrete stringer/multi-beam or girder carrying I-69 SB over Hog Creek in Branch County, Michigan. It was built in 1967, so it is 58 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 10,926 vehicles a day, roughly 36% of them trucks, projected to reach 13,711 by 2018. The structure is 96 ft (29.2 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-69 SB
CrossesHog Creek
Location6.7 MI N of US-12
RouteInterstate 69
CountyBranch County
StateMichigan
Coordinates42.03317, -84.97732
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length96 ft (29.2 m)
Longest span48 ft (14.6 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,926 (2007)
Projected traffic13,711 by 2018
Trucks36%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-69 SB over Hog Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-69 SB over Hog 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 May 2023.

How much traffic does I-69 SB over Hog Creek carry?

About 10,926 vehicles per day (2007 count), of which roughly 36% are trucks.

How long is I-69 SB over Hog Creek?

The structure is 96 ft (29.2 m) long with a longest span of 48 ft (14.6 m) and a deck 42 ft wide.

Who owns I-69 SB over Hog Creek?

It is owned by the State Highway Agency.