US Bridges

LOCAL-510th St. over Drainage Ditch

Good

Cherokee County, Iowa · 092422201 · Structure no. 000000000109311

Built
2001
24 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
40
2022 count
Owner
County
County Highway Agency

About this bridge

LOCAL-510th St. over Drainage Ditch is a concrete slab carrying LOCAL-510th St. over Drainage Ditch in Cherokee County, Iowa. It was built in 2001, so it is 24 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 40 vehicles a day, projected to reach 40 by 2043. The structure is 32 ft (9.8 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLOCAL-510th St.
CrossesDrainage Ditch
Location092422201
RouteCounty Highway 0
CountyCherokee County
StateIowa
Coordinates42.7788, -95.7966
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2022)
Projected traffic40 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was LOCAL-510th St. over Drainage Ditch built?

It was built in 2001, making it 24 years old in 2025.

What condition is LOCAL-510th St. 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 August 2023.

How much traffic does LOCAL-510th St. over Drainage Ditch carry?

About 40 vehicles per day (2022 count).

How long is LOCAL-510th St. over Drainage Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns LOCAL-510th St. over Drainage Ditch?

It is owned by the County Highway Agency.