US Bridges

Stilson Road over Elk Creek Drain

Good

Sanilac County, Michigan · Sec 9-16 Elk Twp · Structure no. 000000000009597

Built
1978
47 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
93 ft
2 main spans
Daily traffic
371
2013 count
Owner
County
County Highway Agency

About this bridge

Stilson Road over Elk Creek Drain is a prestressed concrete box beam or girders - multiple carrying Stilson Road over Elk Creek Drain in Sanilac County, Michigan. It was built in 1978, so it is 47 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 371 vehicles a day, roughly 10% of them trucks, projected to reach 670 by 2033. The structure is 93 ft (28.3 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesStilson Road
CrossesElk Creek Drain
LocationSec 9-16 Elk Twp
RouteCounty Highway 0
Coordinates43.30186, -82.83057
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length93 ft (28.3 m)
Longest span45 ft (13.8 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic371 (2013)
Projected traffic670 by 2033
Trucks10%
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 Stilson Road over Elk Creek Drain built?

It was built in 1978, making it 47 years old in 2025.

What condition is Stilson Road over Elk 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 July 2024.

How much traffic does Stilson Road over Elk Creek Drain carry?

About 371 vehicles per day (2013 count), of which roughly 10% are trucks.

How long is Stilson Road over Elk Creek Drain?

The structure is 93 ft (28.3 m) long with a longest span of 45 ft (13.8 m) and a deck 33 ft wide.

Who owns Stilson Road over Elk Creek Drain?

It is owned by the County Highway Agency.