US Bridges

Holmes HWY over Spring Brook

Fair

Eaton County, Michigan · 3 MI S of Eaton Rapids · Structure no. 000000000002399

Built
1960
65 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
466
2014 count
Owner
County
County Highway Agency

About this bridge

Holmes HWY over Spring Brook is a prestressed concrete box beam or girders - multiple carrying Holmes HWY over Spring Brook in Eaton County, Michigan. It was built in 1960, so it is 65 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 6 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 466 vehicles a day, projected to reach 900 by 2013. The structure is 37 ft (11.2 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHolmes HWY
CrossesSpring Brook
Location3 MI S of Eaton Rapids
RouteCounty Highway 0
CountyEaton County
StateMichigan
Coordinates42.46535, -84.66485
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length37 ft (11.2 m)
Longest span35 ft (10.6 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic466 (2014)
Projected traffic900 by 2013
Trucks0%
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 Holmes HWY over Spring Brook built?

It was built in 1960, making it 65 years old in 2025.

What condition is Holmes HWY over Spring Brook 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 June 2023.

How much traffic does Holmes HWY over Spring Brook carry?

About 466 vehicles per day (2014 count).

How long is Holmes HWY over Spring Brook?

The structure is 37 ft (11.2 m) long with a longest span of 35 ft (10.6 m) and a deck 31 ft wide.

Who owns Holmes HWY over Spring Brook?

It is owned by the County Highway Agency.