US Bridges

17 Mile Road over Middle Branch River

Poor

Osceola County, Michigan · Middle Br Twp Sec 3/10 · Structure no. 000000000013253

Built
1965
60 years old
Condition
Poor
inspected July 2024
Type
Culvert
Steel
Length
32 ft
2 main spans
Daily traffic
153
2017 count
Owner
County
County Highway Agency

About this bridge

17 Mile Road over Middle Branch River is a steel culvert carrying 17 Mile Road over Middle Branch River in Osceola County, Michigan. It was built in 1965, so it is 60 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 153 vehicles a day, roughly 10% of them trucks, projected to reach 300 by 2037. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries17 Mile Road
CrossesMiddle Branch River
LocationMiddle Br Twp Sec 3/10
RouteCounty Highway 0
CountyOsceola County
StateMichigan
Coordinates44.05924, -85.12837
Functional classRural Minor 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating53.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span14 ft (4.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic153 (2017)
Projected traffic300 by 2037
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 17 Mile Road over Middle Branch River built?

It was built in 1965, making it 60 years old in 2025.

What condition is 17 Mile Road over Middle Branch River 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 July 2024.

How much traffic does 17 Mile Road over Middle Branch River carry?

About 153 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is 17 Mile Road over Middle Branch River?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.4 m).

Who owns 17 Mile Road over Middle Branch River?

It is owned by the County Highway Agency.