US Bridges

Lashbrook Road over Unnamed Creek

PoorPosted for load

St. Clair County, Michigan · Sec 23 Wales Twp · Structure no. 000000000010232

Built
1979
46 years old
Condition
Poor
inspected November 2024
Type
Culvert
Steel
Length
21 ft
2 main spans
Daily traffic
105
1994 count
Owner
County
County Highway Agency

About this bridge

Lashbrook Road over Unnamed Creek is a steel culvert carrying Lashbrook Road over Unnamed Creek in St. Clair County, Michigan. It was built in 1979, so it is 46 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 105 vehicles a day, roughly 3% of them trucks, projected to reach 160 by 2014. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLashbrook Road
CrossesUnnamed Creek
LocationSec 23 Wales Twp
RouteCounty Highway 0
CountySt. Clair County
StateMichigan
Coordinates42.93811, -82.66059
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating14.3 US tons
Inventory rating11 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105 (1994)
Projected traffic160 by 2014
Trucks3%
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 Lashbrook Road over Unnamed Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Lashbrook Road over Unnamed Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Lashbrook Road over Unnamed Creek carry?

About 105 vehicles per day (1994 count), of which roughly 3% are trucks.

How long is Lashbrook Road over Unnamed Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Lashbrook Road over Unnamed Creek?

It is owned by the County Highway Agency.