US Bridges

Walton Road over Little Salt River

PoorPosted for load

Isabella County, Michigan · Sec 2-11 Coe Twp · Structure no. 000000000004332

Built
1980
45 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
198
2004 count
Owner
County
County Highway Agency

About this bridge

Walton Road over Little Salt River is a steel stringer/multi-beam or girder carrying Walton Road over Little Salt River in Isabella County, Michigan. It was built in 1980, so it is 45 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 198 vehicles a day, projected to reach 301 by 2024. The structure is 57 ft (17.3 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWalton Road
CrossesLittle Salt River
LocationSec 2-11 Coe Twp
RouteCounty Highway 0
Coordinates43.53868, -84.62917
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating10.4 US tons
Inventory rating6.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length57 ft (17.3 m)
Longest span55 ft (16.7 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic198 (2004)
Projected traffic301 by 2024
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Walton Road over Little Salt River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Walton Road over Little Salt River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Walton Road over Little Salt River carry?

About 198 vehicles per day (2004 count).

How long is Walton Road over Little Salt River?

The structure is 57 ft (17.3 m) long with a longest span of 55 ft (16.7 m) and a deck 31 ft wide.

Who owns Walton Road over Little Salt River?

It is owned by the County Highway Agency.