US Bridges

Willoughby Road over Sycamore Creek

Good

Ingham County, Michigan · 2.1 MI NE of Holt · Structure no. 000000000003890

Built
2011
14 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
1,560
2010 count
Owner
County
County Highway Agency

About this bridge

Willoughby Road over Sycamore Creek is a prestressed concrete box beam or girders - multiple carrying Willoughby Road over Sycamore Creek in Ingham County, Michigan. It was built in 2011, so it is 14 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 1,560 vehicles a day, roughly 1% of them trucks, projected to reach 2,320 by 2030. The structure is 84 ft (25.6 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesWilloughby Road
CrossesSycamore Creek
Location2.1 MI NE of Holt
RouteCounty Highway 0
CountyIngham County
StateMichigan
Coordinates42.65488, -84.47868
Functional classUrban 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 geometry5: 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 rating76.8 US tons
Inventory rating48.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length84 ft (25.6 m)
Longest span83 ft (25.2 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,560 (2010)
Projected traffic2,320 by 2030
Trucks1%
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 Willoughby Road over Sycamore Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Willoughby Road over Sycamore Creek 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 October 2023.

How much traffic does Willoughby Road over Sycamore Creek carry?

About 1,560 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Willoughby Road over Sycamore Creek?

The structure is 84 ft (25.6 m) long with a longest span of 83 ft (25.2 m) and a deck 31 ft wide.

Who owns Willoughby Road over Sycamore Creek?

It is owned by the County Highway Agency.