US Bridges

Base Line HWY over Indian Creek

Good

Eaton County, Michigan · 1 MI S of Olivet · Structure no. 000000000002423

Built
1996
29 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
72
2010 count
Owner
County
County Highway Agency

About this bridge

Base Line HWY over Indian Creek is a prestressed concrete box beam or girders - multiple carrying Base Line HWY over Indian Creek in Eaton County, Michigan. It was built in 1996, so it is 29 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 72 vehicles a day, roughly 3% of them trucks, projected to reach 340 by 2015. The structure is 55 ft (16.7 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBase Line HWY
CrossesIndian Creek
Location1 MI S of Olivet
RouteCounty Highway 0
Coordinates42.4221, -84.93208
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.7 m)
Longest span55 ft (16.7 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72 (2010)
Projected traffic340 by 2015
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Base Line HWY over Indian Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Base Line HWY over Indian Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Base Line HWY over Indian Creek carry?

About 72 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is Base Line HWY over Indian Creek?

The structure is 55 ft (16.7 m) long with a longest span of 55 ft (16.7 m) and a deck 34 ft wide.

Who owns Base Line HWY over Indian Creek?

It is owned by the County Highway Agency.