US Bridges

Stoddard Road over Willow River

PoorPosted for load

Huron County, Michigan · Sec. 8-17 Huron Twp. · Structure no. 000000000003536

Built
1978
47 years old
Condition
Poor
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
100 ft
3 main spans
Daily traffic
245
2009 count
Owner
County
County Highway Agency

About this bridge

Stoddard Road over Willow River is a prestressed concrete tee beam carrying Stoddard Road over Willow River in Huron County, Michigan. It was built in 1978, so it is 47 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 4 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 245 vehicles a day, roughly 1% of them trucks, projected to reach 440 by 2029. The structure is 100 ft (30.4 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesStoddard Road
CrossesWillow River
LocationSec. 8-17 Huron Twp.
RouteCounty Highway 3280
Coordinates44.00137, -82.85352
Functional classRural Major Collector

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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.2 US tons
Inventory rating20 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length100 ft (30.4 m)
Longest span32 ft (9.7 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic245 (2009)
Projected traffic440 by 2029
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Stoddard Road over Willow River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Stoddard Road over Willow 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 August 2024.

How much traffic does Stoddard Road over Willow River carry?

About 245 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is Stoddard Road over Willow River?

The structure is 100 ft (30.4 m) long with a longest span of 32 ft (9.7 m) and a deck 36 ft wide.

Who owns Stoddard Road over Willow River?

It is owned by the County Highway Agency.