US Bridges

Neola Ave over Hardin Creek

Good

Greene County, Iowa · 084303204 · Structure no. 000000000162611

Built
1986
39 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
142 ft
4 main spans
Daily traffic
82
2022 count
Owner
County
County Highway Agency

About this bridge

Neola Ave over Hardin Creek is a concrete continuous slab carrying Neola Ave over Hardin Creek in Greene County, Iowa. It was built in 1986, so it is 39 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 82 vehicles a day, projected to reach 82 by 2044. The structure is 142 ft (43.3 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNeola Ave
CrossesHardin Creek
Location084303204
RouteCounty Highway 0
StateIowa
Coordinates42.04743, -94.36831
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.6 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span39 ft (11.9 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82 (2022)
Projected traffic82 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Neola Ave over Hardin Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Neola Ave 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 June 2024.

How much traffic does Neola Ave over Hardin Creek carry?

About 82 vehicles per day (2022 count).

How long is Neola Ave over Hardin Creek?

The structure is 142 ft (43.3 m) long with a longest span of 39 ft (11.9 m) and a deck 27 ft wide.

Who owns Neola Ave over Hardin Creek?

It is owned by the County Highway Agency.