115th Ave over Hickory Creek

Good

Scott County, Iowa · 079E21308 · Structure no. 000000000302541

Built: 1993; 32 years old
Condition: Good; inspected April 2021
Type: Slab; Concrete Continuous
Length: 103 ft; 3 main spans
Daily traffic: 1,540; 2022 count
Owner: County; County Highway Agency

About this bridge

115th Ave over Hickory Creek is a concrete continuous slab carrying 115th Ave over Hickory Creek in Scott County, Iowa. It was built in 1993, so it is 32 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 1,540 vehicles a day, projected to reach 1,540 by 2043. The structure is 103 ft (31.4 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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Carries115th Ave

CrossesHickory Creek

Location079E21308

RouteCounty Highway 0

CountyScott County

StateIowa

Coordinates41.64645, -90.67377

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	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionApril 2021

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating88.6 US tons

Inventory rating53.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length103 ft (31.4 m)

Longest span39 ft (11.9 m)

Deck width32 ft (9.8 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,540 (2022)

Projected traffic1,540 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed6.2 mi (10 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 proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was 115th Ave over Hickory Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is 115th Ave over Hickory 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 2021.

How much traffic does 115th Ave over Hickory Creek carry?

About 1,540 vehicles per day (2022 count).

How long is 115th Ave over Hickory Creek?

The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.

Who owns 115th Ave over Hickory Creek?

It is owned by the County Highway Agency.