US Bridges

Hewitt Road over Plum Creek Drain

Good

St. Clair County, Michigan · Sec. 26 Greenwood Twp. · Structure no. 000000000010174

Built
1996
29 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
106
1994 count
Owner
County
County Highway Agency

About this bridge

Hewitt Road over Plum Creek Drain is a prestressed concrete box beam or girders - multiple carrying Hewitt Road over Plum Creek Drain in St. Clair County, Michigan. It was built in 1996, so it is 29 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 106 vehicles a day, projected to reach 150 by 2015. The structure is 32 ft (9.8 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHewitt Road
CrossesPlum Creek Drain
LocationSec. 26 Greenwood Twp.
RouteCounty Highway 0
Coordinates43.09819, -82.66224
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.5 US tons
Inventory rating48.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic106 (1994)
Projected traffic150 by 2015
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Hewitt Road over Plum Creek Drain built?

It was built in 1996, making it 29 years old in 2025.

What condition is Hewitt Road over Plum Creek Drain in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Hewitt Road over Plum Creek Drain carry?

About 106 vehicles per day (1994 count).

How long is Hewitt Road over Plum Creek Drain?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 34 ft wide.

Who owns Hewitt Road over Plum Creek Drain?

It is owned by the County Highway Agency.