US Bridges

16 Mile Road over Ryan Creek

Fair

Mecosta County, Michigan · 0 5 MI E of Big Rapids · Structure no. 000000000006762

Built
1968
57 years old, rebuilt 1986
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
22 ft
1 main span
Daily traffic
4,542
2018 count
Owner
County
County Highway Agency

About this bridge

16 Mile Road over Ryan Creek is a prestressed concrete box beam or girders - multiple carrying 16 Mile Road over Ryan Creek in Mecosta County, Michigan. It was built in 1968 and reconstructed in 1986, so it is 57 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 4,542 vehicles a day, roughly 12% of them trucks, projected to reach 5,020 by 2038. The structure is 22 ft (6.7 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries16 Mile Road
CrossesRyan Creek
Location0 5 MI E of Big Rapids
RouteCounty Highway 5468
CountyMecosta County
StateMichigan
Coordinates43.69856, -85.45464
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
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 inspectionAugust 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.5 US tons
Inventory rating38.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width40 ft (12.3 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,542 (2018)
Projected traffic5,020 by 2038
Trucks12%
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 16 Mile Road over Ryan Creek built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1986.

What condition is 16 Mile Road 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 16 Mile Road over Ryan Creek carry?

About 4,542 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is 16 Mile Road over Ryan Creek?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 40 ft wide.

Who owns 16 Mile Road over Ryan Creek?

It is owned by the County Highway Agency.