US Bridges

Woolf Ave over US 6 & RR

Fair

Johnson County, Iowa · 079060900 · Structure no. 000000000031541

Built
1998
27 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
192 ft
5 main spans
Daily traffic
1,400
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Woolf Ave over US 6 & RR is a concrete continuous slab carrying Woolf Ave over US 6 & RR in Johnson County, Iowa. It was built in 1998, so it is 27 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 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 1,400 vehicles a day, projected to reach 1,400 by 2043. The structure is 192 ft (58.5 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesWoolf Ave
CrossesUS 6 & RR
Location079060900
RouteCity Street 0
CountyJohnson County
StateIowa
Coordinates41.66466, -91.54977
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span69 ft (21 m)
Deck width49 ft (14.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2022)
Projected traffic1,400 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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$17,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Woolf Ave over US 6 & RR built?

It was built in 1998, making it 27 years old in 2025.

What condition is Woolf Ave over US 6 & RR 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 Woolf Ave over US 6 & RR carry?

About 1,400 vehicles per day (2022 count).

How long is Woolf Ave over US 6 & RR?

The structure is 192 ft (58.5 m) long with a longest span of 69 ft (21 m) and a deck 49 ft wide.

Who owns Woolf Ave over US 6 & RR?

It is owned by the City or Municipal Highway Agency.