US Bridges

Polk Street over Sawyer Creek

Fair

Ottawa County, Michigan · Section 16 Olive Twp · Structure no. 000000000008898

Built
1986
39 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
515
2019 count
Owner
County
County Highway Agency

About this bridge

Polk Street over Sawyer Creek is a concrete culvert carrying Polk Street over Sawyer Creek in Ottawa County, Michigan. It was built in 1986, so it is 39 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 515 vehicles a day, roughly 5% of them trucks, projected to reach 930 by 2039. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPolk Street
CrossesSawyer Creek
LocationSection 16 Olive Twp
RouteCounty Highway 0
Coordinates42.91421, -86.09137
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic515 (2019)
Projected traffic930 by 2039
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 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 Polk Street over Sawyer Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Polk Street over Sawyer Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Polk Street over Sawyer Creek carry?

About 515 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Polk Street over Sawyer Creek?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m).

Who owns Polk Street over Sawyer Creek?

It is owned by the County Highway Agency.