US Bridges

17 Mile Road over I-94

Poor

Calhoun County, Michigan · 1.7 MI E of I-69 · Structure no. 000000000001275

Built
1960
65 years old, rebuilt 1992
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
315 ft
4 main spans
Daily traffic
13,254
1995 count
Owner
State
State Highway Agency

About this bridge

17 Mile Road over I-94 is a steel stringer/multi-beam or girder carrying 17 Mile Road over I-94 in Calhoun County, Michigan. It was built in 1960 and reconstructed in 1992, so it is 65 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 13,254 vehicles a day, roughly 3% of them trucks, projected to reach 15,242 by 2000. The structure is 315 ft (96 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries17 Mile Road
CrossesI-94
Location1.7 MI E of I-69
RouteCounty Highway 1359
CountyCalhoun County
StateMichigan
Coordinates42.29411, -84.96454
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length315 ft (96 m)
Longest span100 ft (30.4 m)
Deck width61 ft (18.7 m)
Roadway width58 ft (17.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,254 (1995)
Projected traffic15,242 by 2000
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 17 Mile Road over I-94 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1992.

What condition is 17 Mile Road over I-94 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does 17 Mile Road over I-94 carry?

About 13,254 vehicles per day (1995 count), of which roughly 3% are trucks.

How long is 17 Mile Road over I-94?

The structure is 315 ft (96 m) long with a longest span of 100 ft (30.4 m) and a deck 61 ft wide.

Who owns 17 Mile Road over I-94?

It is owned by the State Highway Agency.