US Bridges

Dell Road over Birkle Lake Outlet

Fair

Washtenaw County, Michigan · Lodi Twp 500 N Bethel Ch · Structure no. 000000000012997

Built
1990
35 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
1,151
2004 count
Owner
County
County Highway Agency

About this bridge

Dell Road over Birkle Lake Outlet is a steel culvert carrying Dell Road over Birkle Lake Outlet in Washtenaw County, Michigan. It was built in 1990, so it is 35 years old, younger 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 1,151 vehicles a day, roughly 2% of them trucks, projected to reach 2,079 by 2024. The structure is 24 ft (7.3 m) long.

Location

Open in Google Maps
CarriesDell Road
CrossesBirkle Lake Outlet
LocationLodi Twp 500 N Bethel Ch
RouteCounty Highway 0
CountyWashtenaw County
StateMichigan
Coordinates42.18571, -83.82603
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.1 US tons
Inventory rating67.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,151 (2004)
Projected traffic2,079 by 2024
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Dell Road over Birkle Lake Outlet built?

It was built in 1990, making it 35 years old in 2025.

What condition is Dell Road over Birkle Lake Outlet 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 July 2023.

How much traffic does Dell Road over Birkle Lake Outlet carry?

About 1,151 vehicles per day (2004 count), of which roughly 2% are trucks.

How long is Dell Road over Birkle Lake Outlet?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns Dell Road over Birkle Lake Outlet?

It is owned by the County Highway Agency.