US Bridges

Kirkwood Street over Drainage

Good

Jefferson County, Iowa · 072102508 · Structure no. 000000000004741

Built
1996
29 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
3,201
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kirkwood Street over Drainage is a concrete continuous culvert carrying Kirkwood Street over Drainage in Jefferson County, Iowa. It was built in 1996, so it is 29 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 3,201 vehicles a day, projected to reach 3,201 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKirkwood Street
CrossesDrainage
Location072102508
RouteCity Street 0
StateIowa
Coordinates41.01516, -91.95321
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,201 (2022)
Projected traffic3,201 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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kirkwood Street over Drainage built?

It was built in 1996, making it 29 years old in 2025.

What condition is Kirkwood Street over Drainage 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 February 2023.

How much traffic does Kirkwood Street over Drainage carry?

About 3,201 vehicles per day (2022 count).

How long is Kirkwood Street over Drainage?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns Kirkwood Street over Drainage?

It is owned by the City or Municipal Highway Agency.