US Bridges

Johnson RD over Little Manistee River

Fair

Lake County, Michigan · Elk Twp Sec 24 · Structure no. 000000000014266

Built
1950
75 years old
Condition
Fair
inspected April 2024
Type
Culvert
Steel
Length
33 ft
3 main spans
Daily traffic
450
2018 count
Owner
County
County Highway Agency

About this bridge

Johnson RD over Little Manistee River is a steel culvert carrying Johnson RD over Little Manistee River in Lake County, Michigan. It was built in 1950, so it is 75 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 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 450 vehicles a day, roughly 3% of them trucks, projected to reach 600 by 2038. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesJohnson RD
CrossesLittle Manistee River
LocationElk Twp Sec 24
RouteCounty Highway 0
Coordinates44.10556, -85.92722
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
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 alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating40 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span10 ft (2.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2018)
Projected traffic600 by 2038
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Johnson RD over Little Manistee River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Johnson RD over Little Manistee River 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 April 2024.

How much traffic does Johnson RD over Little Manistee River carry?

About 450 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Johnson RD over Little Manistee River?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (2.9 m).

Who owns Johnson RD over Little Manistee River?

It is owned by the County Highway Agency.