US Bridges

Ironwood Ave over Drainage Ditch No 6

Good

Franklin County, Iowa · 090210904 · Structure no. 000000000156641

Built
2012
13 years old
Condition
Good
inspected June 2022
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

Ironwood Ave over Drainage Ditch No 6 is a concrete culvert carrying Ironwood Ave over Drainage Ditch No 6 in Franklin County, Iowa. It was built in 2012, so it is 13 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 21 vehicles a day, projected to reach 21 by 2043. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIronwood Ave
CrossesDrainage Ditch No 6
Location090210904
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.62774, -93.33062
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 inspectionJune 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 alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic21 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$30,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ironwood Ave over Drainage Ditch No 6 built?

It was built in 2012, making it 13 years old in 2025.

What condition is Ironwood Ave over Drainage Ditch No 6 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 2022.

How much traffic does Ironwood Ave over Drainage Ditch No 6 carry?

About 21 vehicles per day (2022 count).

How long is Ironwood Ave over Drainage Ditch No 6?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.3 m).

Who owns Ironwood Ave over Drainage Ditch No 6?

It is owned by the County Highway Agency.