US Bridges

Willow Cr.Rd. over Willow Creek

Fair

Linn County, Iowa · 082051604 · Structure no. 000000000220011

Built
1996
29 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
24 ft
1 main span
Daily traffic
39
2022 count
Owner
County
County Highway Agency

About this bridge

Willow Cr.Rd. over Willow Creek is a wood or timber slab carrying Willow Cr.Rd. over Willow Creek in Linn 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 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 39 vehicles a day, projected to reach 39 by 2044. The structure is 24 ft (7.3 m) long and 24 ft wide.

Location

Open in Google Maps
CarriesWillow Cr.Rd.
CrossesWillow Creek
Location082051604
RouteCounty Highway 0
CountyLinn County
StateIowa
Coordinates41.91131, -91.44374
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.5 US tons
Inventory rating65.1 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2022)
Projected traffic39 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 Willow Cr.Rd. over Willow Creek built?

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

What condition is Willow Cr.Rd. over Willow Creek 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 October 2024.

How much traffic does Willow Cr.Rd. over Willow Creek carry?

About 39 vehicles per day (2022 count).

How long is Willow Cr.Rd. over Willow Creek?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.

Who owns Willow Cr.Rd. over Willow Creek?

It is owned by the County Highway Agency.