G62 Pierce DR over Walnut Creek

Good

Marion County, Iowa · 075182803 · Structure no. 000000000239751

Built: 2021; 4 years old
Condition: Good; inspected April 2024
Type: Slab; Concrete Continuous
Length: 110 ft; 3 main spans
Daily traffic: 70; 2022 count
Owner: County; County Highway Agency

About this bridge

G62 Pierce DR over Walnut Creek is a concrete continuous slab carrying G62 Pierce DR over Walnut Creek in Marion County, Iowa. It was built in 2021, so it is 4 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 70 vehicles a day, projected to reach 70 by 2044. The structure is 110 ft (33.5 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesG62 Pierce DR

CrossesWalnut Creek

Location075182803

RouteCounty Highway 0

CountyMarion County

StateIowa

Coordinates41.26945, -92.94252

Functional classRural Major Collector

Condition and inspection

Good

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

Component	Rating	Meaning
Deck	9 Excellent	No problems noted.
Superstructure	9 Excellent	No problems noted.
Substructure	9 Excellent	No problems noted.
Channel and channel protection	9 Excellent	No problems noted.

Last inspectionApril 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation9: Superior to present desirable criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy9: Superior to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating51.8 US tons

Inventory rating40 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHL 93

Structure length110 ft (33.5 m)

Longest span43 ft (13.1 m)

Deck width27 ft (8.3 m)

Roadway width25 ft (7.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)

Projected traffic70 by 2044

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed5 mi (8 km)

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—

NavigationNot applicable (no waterway)

Frequently asked questions

When was G62 Pierce DR over Walnut Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is G62 Pierce DR over 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 April 2024.

How much traffic does G62 Pierce DR over Walnut Creek carry?

About 70 vehicles per day (2022 count).

How long is G62 Pierce DR over Walnut Creek?

The structure is 110 ft (33.5 m) long with a longest span of 43 ft (13.1 m) and a deck 27 ft wide.

Who owns G62 Pierce DR over Walnut Creek?

It is owned by the County Highway Agency.