US Bridges

Schroeder Road over Big Potato Creek

Poor

Saginaw County, Michigan · 0.1 MI E of Merrill Road · Structure no. 000000000009378

Built
1975
50 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
153
2023 count
Owner
County
County Highway Agency

About this bridge

Schroeder Road over Big Potato Creek is a steel stringer/multi-beam or girder carrying Schroeder Road over Big Potato Creek in Saginaw County, Michigan. It was built in 1975, so it is 50 years old, older 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.

It carries about 153 vehicles a day, roughly 5% of them trucks, projected to reach 196 by 2033. The structure is 36 ft (10.9 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSchroeder Road
CrossesBig Potato Creek
Location0.1 MI E of Merrill Road
RouteCounty Highway 0
Coordinates43.27314, -84.32655
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length36 ft (10.9 m)
Longest span34 ft (10.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic153 (2023)
Projected traffic196 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Schroeder Road over Big Potato Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Schroeder Road over Big Potato Creek 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 October 2024.

How much traffic does Schroeder Road over Big Potato Creek carry?

About 153 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Schroeder Road over Big Potato Creek?

The structure is 36 ft (10.9 m) long with a longest span of 34 ft (10.3 m) and a deck 28 ft wide.

Who owns Schroeder Road over Big Potato Creek?

It is owned by the County Highway Agency.