US Bridges

Westgate Parkway over Little Walnut Creek

Good

Dallas County, Iowa · 079262200 · Structure no. 000000000505665

Built
2020
5 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
111 ft
3 main spans
Daily traffic
289
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Westgate Parkway over Little Walnut Creek is a concrete continuous slab carrying Westgate Parkway over Little Walnut Creek in Dallas County, Iowa. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 289 vehicles a day, projected to reach 289 by 2043. The structure is 111 ft (33.8 m) long and 48 ft wide.

CarriesWestgate Parkway
CrossesLittle Walnut Creek
Location079262200
RouteCity Street 0
StateIowa
Coordinates41.63409, -93.86231
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length111 ft (33.8 m)
Longest span43 ft (13.1 m)
Deck width48 ft (14.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic289 (2021)
Projected traffic289 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Westgate Parkway over Little Walnut Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Westgate Parkway over Little Walnut 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 May 2023.

How much traffic does Westgate Parkway over Little Walnut Creek carry?

About 289 vehicles per day (2021 count).

How long is Westgate Parkway over Little Walnut Creek?

The structure is 111 ft (33.8 m) long with a longest span of 43 ft (13.1 m) and a deck 48 ft wide.

Who owns Westgate Parkway over Little Walnut Creek?

It is owned by the City or Municipal Highway Agency.