US Bridges

Bucholtz HWY over Swamp Raisin Drain

Fair

Lenawee County, Michigan · 0.5 MI North of Laberdee · Structure no. 000000000005606

Built
1967
58 years old, rebuilt 2001
Condition
Fair
inspected February 2024
Type
Slab
Wood or Timber
Length
36 ft
1 main span
Daily traffic
990
2011 count
Owner
County
County Highway Agency

About this bridge

Bucholtz HWY over Swamp Raisin Drain is a wood or timber slab carrying Bucholtz HWY over Swamp Raisin Drain in Lenawee County, Michigan. It was built in 1967 and reconstructed in 2001, so it is 58 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 990 vehicles a day, roughly 2% of them trucks, projected to reach 1,100 by 2031. The structure is 36 ft (11 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBucholtz HWY
CrossesSwamp Raisin Drain
Location0.5 MI North of Laberdee
RouteCounty Highway 4699
Coordinates41.92867, -83.78021
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.9 US tons
Inventory rating48.7 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckCorrugated steel
Main spans1
Design loadHS 25 or greater
Structure length36 ft (11 m)
Longest span34 ft (10.3 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic990 (2011)
Projected traffic1,100 by 2031
Trucks2%
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 Bucholtz HWY over Swamp Raisin Drain built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2001.

What condition is Bucholtz HWY over Swamp Raisin Drain 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 February 2024.

How much traffic does Bucholtz HWY over Swamp Raisin Drain carry?

About 990 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Bucholtz HWY over Swamp Raisin Drain?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.3 m) and a deck 25 ft wide.

Who owns Bucholtz HWY over Swamp Raisin Drain?

It is owned by the County Highway Agency.