US Bridges

9 Mile Road over N Br Carroll Creek

Fair

Midland County, Michigan · Jerome Twp Sec 33/34 · Structure no. 000000000013936

Built
2017
8 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
500
2014 count
Owner
County
County Highway Agency

About this bridge

9 Mile Road over N Br Carroll Creek is a concrete slab carrying 9 Mile Road over N Br Carroll Creek in Midland County, Michigan. It was built in 2017, so it is 8 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 500 vehicles a day, projected to reach 575 by 2034. The structure is 30 ft (9.1 m) long and 37 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
Carries9 Mile Road
CrossesN Br Carroll Creek
LocationJerome Twp Sec 33/34
RouteCounty Highway 0
CountyMidland County
StateMichigan
Coordinates43.64225, -84.42867
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating60 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span22 ft (6.6 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2014)
Projected traffic575 by 2034
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 9 Mile Road over N Br Carroll Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is 9 Mile Road over N Br Carroll 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 November 2023.

How much traffic does 9 Mile Road over N Br Carroll Creek carry?

About 500 vehicles per day (2014 count).

How long is 9 Mile Road over N Br Carroll Creek?

The structure is 30 ft (9.1 m) long with a longest span of 22 ft (6.6 m) and a deck 37 ft wide.

Who owns 9 Mile Road over N Br Carroll Creek?

It is owned by the County Highway Agency.