US Bridges

Pettit Road over Silver Creek

Poor

Saginaw County, Michigan · 0.5 MI N of Canada Road · Structure no. 000000000009421

Built
1910
115 years old, rebuilt 2001
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
44
2014 count
Owner
County
County Highway Agency

About this bridge

Pettit Road over Silver Creek is a steel stringer/multi-beam or girder carrying Pettit Road over Silver Creek in Saginaw County, Michigan. It was built in 1910 and reconstructed in 2001, so it is 115 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 44 vehicles a day, roughly 5% of them trucks, projected to reach 46 by 2024. The structure is 31 ft (9.4 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPettit Road
CrossesSilver Creek
Location0.5 MI N of Canada Road
RouteCounty Highway 0
CountySaginaw County
StateMichigan
Coordinates43.27411, -83.87441
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating81 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width16 ft (4.8 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2014)
Projected traffic46 by 2024
Trucks5%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 Pettit Road over Silver Creek built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 2001.

What condition is Pettit Road over Silver 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 July 2024.

How much traffic does Pettit Road over Silver Creek carry?

About 44 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Pettit Road over Silver Creek?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 16 ft wide.

Who owns Pettit Road over Silver Creek?

It is owned by the County Highway Agency.