US Bridges

Keokuk Ave over Malone CR

Fair

Buchanan County, Iowa · 089091303 · Structure no. 000000000082871

Built
2004
21 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
49
2022 count
Owner
County
County Highway Agency

About this bridge

Keokuk Ave over Malone CR is a concrete culvert carrying Keokuk Ave over Malone CR in Buchanan County, Iowa. It was built in 2004, so it is 21 years old, younger than the Iowa average of 45.5 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 49 vehicles a day, projected to reach 49 by 2044. The structure is 32 ft (9.8 m) long and 48 ft wide.

CarriesKeokuk Ave
CrossesMalone CR
Location089091303
RouteCounty Highway 0
StateIowa
Coordinates42.51417, -91.87992
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating32.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2022)
Projected traffic49 by 2044
Trucks0%
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 Keokuk Ave over Malone CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is Keokuk Ave over Malone CR 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 January 2024.

How much traffic does Keokuk Ave over Malone CR carry?

About 49 vehicles per day (2022 count).

How long is Keokuk Ave over Malone CR?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 48 ft wide.

Who owns Keokuk Ave over Malone CR?

It is owned by the County Highway Agency.