US Bridges

Zinnia Ave over Dry Run

Good

Floyd County, Iowa · 094180606 · Structure no. 000000000154151

Built
2014
11 years old
Condition
Good
inspected March 2022
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
44
2022 count
Owner
County
County Highway Agency

About this bridge

Zinnia Ave over Dry Run is a concrete continuous culvert carrying Zinnia Ave over Dry Run in Floyd County, Iowa. It was built in 2014, so it is 11 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 44 vehicles a day, projected to reach 44 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesZinnia Ave
CrossesDry Run
Location094180606
RouteCounty Highway 0
CountyFloyd County
StateIowa
Coordinates42.99198, -93.02369
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2022)
Projected traffic44 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Zinnia Ave over Dry Run built?

It was built in 2014, making it 11 years old in 2025.

What condition is Zinnia Ave over Dry Run 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 March 2022.

How much traffic does Zinnia Ave over Dry Run carry?

About 44 vehicles per day (2022 count).

How long is Zinnia Ave over Dry Run?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Zinnia Ave over Dry Run?

It is owned by the County Highway Agency.