US Bridges

New Millpond Road over Ryan Creek

Good

Mecosta County, Michigan · 0.6 MI South of M-20 · Structure no. 000000000006766

Built
1987
38 years old, rebuilt 2019
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
4,229
2019 count
Owner
County
County Highway Agency

About this bridge

New Millpond Road over Ryan Creek is a prestressed concrete box beam or girders - multiple carrying New Millpond Road over Ryan Creek in Mecosta County, Michigan. It was built in 1987 and reconstructed in 2019, so it is 38 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 4,229 vehicles a day, roughly 6% of them trucks, projected to reach 4,670 by 2039. The structure is 34 ft (10.4 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNew Millpond Road
CrossesRyan Creek
Location0.6 MI South of M-20
RouteCounty Highway 5425
Coordinates43.68432, -85.45742
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 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 evaluation7: Better than present minimum criteria
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 rating94.7 US tons
Inventory rating73.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length34 ft (10.4 m)
Longest span33 ft (10 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,229 (2019)
Projected traffic4,670 by 2039
Trucks6%
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 New Millpond Road over Ryan Creek built?

It was built in 1987, making it 38 years old in 2025. It was reconstructed in 2019.

What condition is New Millpond Road over Ryan 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 August 2023.

How much traffic does New Millpond Road over Ryan Creek carry?

About 4,229 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is New Millpond Road over Ryan Creek?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10 m) and a deck 41 ft wide.

Who owns New Millpond Road over Ryan Creek?

It is owned by the County Highway Agency.