L Ave / P16 over Hardin Creek

Good

Greene County, Iowa · 084312402 · Structure no. 000000000162731

Built: 1979; 46 years old
Condition: Good; inspected May 2024
Type: Slab; Concrete Continuous
Length: 102 ft; 3 main spans
Daily traffic: 29; 2022 count
Owner: County; County Highway Agency

About this bridge

L Ave / P16 over Hardin Creek is a concrete continuous slab carrying L Ave / P16 over Hardin Creek in Greene County, Iowa. It was built in 1979, so it is 46 years old, older 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 29 vehicles a day, projected to reach 29 by 2043. The structure is 102 ft (31.1 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesL Ave / P16

CrossesHardin Creek

Location084312402

RouteCounty Highway 0

CountyGreene County

StateIowa

Coordinates42.07565, -94.41745

Functional classRural Minor 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	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionMay 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating47.8 US tons

Inventory rating28.7 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 20

Structure length102 ft (31.1 m)

Longest span39 ft (11.9 m)

Deck width30 ft (9.1 m)

Roadway width28 ft (8.6 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2022)

Projected traffic29 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 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—

NavigationNo navigation control on waterway

Frequently asked questions

When was L Ave / P16 over Hardin Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is L Ave / P16 over Hardin 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 2024.

How much traffic does L Ave / P16 over Hardin Creek carry?

About 29 vehicles per day (2022 count).

How long is L Ave / P16 over Hardin Creek?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.

Who owns L Ave / P16 over Hardin Creek?

It is owned by the County Highway Agency.