US Bridges

Holt Road over Sycamore Creek

Fair

Ingham County, Michigan · 1 Mile East of Holt · Structure no. 000000000003867

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
105 ft
3 main spans
Daily traffic
6,600
2019 count
Owner
County
County Highway Agency

About this bridge

Holt Road over Sycamore Creek is a prestressed concrete stringer/multi-beam or girder carrying Holt Road over Sycamore Creek in Ingham County, Michigan. It was built in 1965, so it is 60 years old, older 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 6,600 vehicles a day, projected to reach 8,060 by 2039. The structure is 105 ft (32 m) long and 58 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHolt Road
CrossesSycamore Creek
Location1 Mile East of Holt
RouteCounty Highway 3366
CountyIngham County
StateMichigan
Coordinates42.64023, -84.48254
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length105 ft (32 m)
Longest span35 ft (10.6 m)
Deck width58 ft (17.8 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2019)
Projected traffic8,060 by 2039
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$136,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Holt Road over Sycamore Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Holt Road over Sycamore 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 May 2023.

How much traffic does Holt Road over Sycamore Creek carry?

About 6,600 vehicles per day (2019 count).

How long is Holt Road over Sycamore Creek?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.6 m) and a deck 58 ft wide.

Who owns Holt Road over Sycamore Creek?

It is owned by the County Highway Agency.