US Bridges

Lake Road over Drainage Ditch

Good

Des Moines County, Iowa · 072012103 · Structure no. 000000000144061

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Slab
Steel
Length
45 ft
1 main span
Daily traffic
47
2022 count
Owner
County
County Highway Agency

About this bridge

Lake Road over Drainage Ditch is a steel slab carrying Lake Road over Drainage Ditch in Des Moines County, Iowa. It was built in 2007, so it is 18 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 47 vehicles a day, projected to reach 47 by 2043. The structure is 45 ft (13.7 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesLake Road
CrossesDrainage Ditch
Location072012103
RouteCounty Highway 0
CountyDes Moines County
StateIowa
Coordinates41.02154, -90.98676
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60.7 US tons
Inventory rating42.7 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span42 ft (12.8 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47 (2022)
Projected traffic47 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lake Road over Drainage Ditch built?

It was built in 2007, making it 18 years old in 2025.

What condition is Lake Road over Drainage Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Lake Road over Drainage Ditch carry?

About 47 vehicles per day (2022 count).

How long is Lake Road over Drainage Ditch?

The structure is 45 ft (13.7 m) long with a longest span of 42 ft (12.8 m) and a deck 26 ft wide.

Who owns Lake Road over Drainage Ditch?

It is owned by the County Highway Agency.