US Bridges

Cook Road over Swartz Creek

PoorPosted for load

Genesee County, Michigan · 0.1 Mi. West of Fenton RD · Structure no. 000000000002802

Built
1930
95 years old
Condition
Poor
inspected October 2024
Type
Tee Beam
Concrete
Length
31 ft
1 main span
Daily traffic
542
2009 count
Owner
County
County Highway Agency

About this bridge

Cook Road over Swartz Creek is a concrete tee beam carrying Cook Road over Swartz Creek in Genesee County, Michigan. It was built in 1930, so it is 95 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 3 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 542 vehicles a day, roughly 2% of them trucks, projected to reach 979 by 2029. The structure is 31 ft (9.4 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCook Road
CrossesSwartz Creek
Location0.1 Mi. West of Fenton RD
RouteCounty Highway 0
Coordinates42.90054, -83.69181
Functional classUrban 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.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating22.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic542 (2009)
Projected traffic979 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Cook Road over Swartz Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is Cook Road over Swartz 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 Cook Road over Swartz Creek carry?

About 542 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is Cook Road over Swartz Creek?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 38 ft wide.

Who owns Cook Road over Swartz Creek?

It is owned by the County Highway Agency.