US Bridges

40th ST over Drainage Ditch No 13

Good

Franklin County, Iowa · 90202903 · Structure no. 000000000156541

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

About this bridge

40th ST over Drainage Ditch No 13 is a concrete culvert carrying 40th ST over Drainage Ditch No 13 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 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries40th ST
CrossesDrainage Ditch No 13
Location90202903
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.58569, -93.23374
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 adequacy9: Superior to present desirable 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 length24 ft (7.3 m)
Longest span10 ft (3 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 40th ST over Drainage Ditch No 13 built?

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

What condition is 40th ST over Drainage Ditch No 13 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 40th ST over Drainage Ditch No 13 carry?

About 20 vehicles per day (2022 count).

How long is 40th ST over Drainage Ditch No 13?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns 40th ST over Drainage Ditch No 13?

It is owned by the County Highway Agency.