US Bridges

30th ST over Drainage Ditch No 5

Good

Franklin County, Iowa · 90213501 · Structure no. 000000000156691

Built
2014
11 years old
Condition
Good
inspected June 2022
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

30th ST over Drainage Ditch No 5 is a concrete culvert carrying 30th ST over Drainage Ditch No 5 in Franklin 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 20 vehicles a day, projected to reach 20 by 2043. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries30th ST
CrossesDrainage Ditch No 5
Location90213501
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.57178, -93.28546
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length20 ft (6.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 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 30th ST over Drainage Ditch No 5 built?

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

What condition is 30th ST over Drainage Ditch No 5 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 30th ST over Drainage Ditch No 5 carry?

About 20 vehicles per day (2022 count).

How long is 30th ST over Drainage Ditch No 5?

The structure is 20 ft (6.1 m) long with a longest span of 8 ft (2.4 m).

Who owns 30th ST over Drainage Ditch No 5?

It is owned by the County Highway Agency.