US Bridges

180th Avenue over Ryan Creek

Fair

Mecosta County, Michigan · 0.33 MI N of 16 Mile Road · Structure no. 000000000014022

Built
1990
35 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
258
2019 count
Owner
County
County Highway Agency

About this bridge

180th Avenue over Ryan Creek is a concrete culvert carrying 180th Avenue over Ryan Creek in Mecosta County, Michigan. It was built in 1990, so it is 35 years old, younger 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 6 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 258 vehicles a day, projected to reach 285 by 2039. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries180th Avenue
CrossesRyan Creek
Location0.33 MI N of 16 Mile Road
RouteCounty Highway 0
CountyMecosta County
StateMichigan
Coordinates43.705, -85.444
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic258 (2019)
Projected traffic285 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 180th Avenue over Ryan Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is 180th Avenue over Ryan 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 August 2023.

How much traffic does 180th Avenue over Ryan Creek carry?

About 258 vehicles per day (2019 count).

How long is 180th Avenue over Ryan Creek?

The structure is 24 ft (7.2 m) long with a longest span of 10 ft (3 m).

Who owns 180th Avenue over Ryan Creek?

It is owned by the County Highway Agency.