US Bridges

LA Chance Road over Clam River

FairPosted for load

Missaukee County, Michigan · Section 20/21 T22N R8W · Structure no. 000000000007044

Built
1997
28 years old
Condition
Fair
inspected May 2023
Type
Truss - Deck
Wood or Timber
Length
79 ft
1 main span
Daily traffic
950
2007 count
Owner
County
County Highway Agency

About this bridge

LA Chance Road over Clam River is a wood or timber truss - deck carrying LA Chance Road over Clam River in Missaukee County, Michigan. It was built in 1997, so it is 28 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. Its operating status is: posted for load restriction.

It carries about 950 vehicles a day, roughly 10% of them trucks, projected to reach 1,750 by 2025. The structure is 79 ft (24 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesLA Chance Road
CrossesClam River
LocationSection 20/21 T22N R8W
RouteCounty Highway 0
Coordinates44.28396, -85.2957
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55 US tons
Inventory rating36.4 US tons

Structure

Structure typeTruss - Deck
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length79 ft (24 m)
Longest span79 ft (24 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2007)
Projected traffic1,750 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 LA Chance Road over Clam River built?

It was built in 1997, making it 28 years old in 2025.

What condition is LA Chance Road over Clam 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 May 2023.

How much traffic does LA Chance Road over Clam River carry?

About 950 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is LA Chance Road over Clam River?

The structure is 79 ft (24 m) long with a longest span of 79 ft (24 m) and a deck 33 ft wide.

Who owns LA Chance Road over Clam River?

It is owned by the County Highway Agency.