US Bridges

Mormon Trk Blvd over Willow Creek

Good

Johnson County, Iowa · 079061700 · Structure no. 000000000504495

Built
2000
25 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
10,001
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mormon Trk Blvd over Willow Creek is a concrete culvert carrying Mormon Trk Blvd over Willow Creek in Johnson County, Iowa. It was built in 2000, so it is 25 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 10,001 vehicles a day, projected to reach 10,001 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMormon Trk Blvd
CrossesWillow Creek
Location079061700
RouteCity Street 0
StateIowa
Coordinates41.64288, -91.57417
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,001 (2022)
Projected traffic10,001 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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 Mormon Trk Blvd over Willow Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Mormon Trk Blvd over Willow Creek 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 July 2023.

How much traffic does Mormon Trk Blvd over Willow Creek carry?

About 10,001 vehicles per day (2022 count).

How long is Mormon Trk Blvd over Willow Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Mormon Trk Blvd over Willow Creek?

It is owned by the City or Municipal Highway Agency.