US Bridges

Vernon Road over North Br Chippewa River

Fair

Isabella County, Michigan · 0.3M W SE Cor Sec 36 T16N · Structure no. 000000000004291

Built
1972
53 years old
Condition
Fair
inspected July 2024
Type
Slab
Wood or Timber
Length
24 ft
1 main span
Daily traffic
660
2002 count
Owner
County
County Highway Agency

About this bridge

Vernon Road over North Br Chippewa River is a wood or timber slab carrying Vernon Road over North Br Chippewa River in Isabella County, Michigan. It was built in 1972, so it is 53 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 660 vehicles a day, projected to reach 980 by 2022. The structure is 24 ft (7.3 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesVernon Road
CrossesNorth Br Chippewa River
Location0.3M W SE Cor Sec 36 T16N
RouteCounty Highway 0
CountyIsabella County
StateMichigan
Coordinates43.72721, -84.85307
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.3 US tons
Inventory rating36.7 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width34 ft (10.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic660 (2002)
Projected traffic980 by 2022
Trucks0%
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 Vernon Road over North Br Chippewa River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Vernon Road over North Br Chippewa 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 July 2024.

How much traffic does Vernon Road over North Br Chippewa River carry?

About 660 vehicles per day (2002 count).

How long is Vernon Road over North Br Chippewa River?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 34 ft wide.

Who owns Vernon Road over North Br Chippewa River?

It is owned by the County Highway Agency.