US Bridges

Lark Ave over Drainage Ditch No 55

Good

Franklin County, Iowa · 93212502 · Structure no. 000000000158551

Built
2017
8 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
43
2022 count
Owner
County
County Highway Agency

About this bridge

Lark Ave over Drainage Ditch No 55 is a concrete continuous culvert carrying Lark Ave over Drainage Ditch No 55 in Franklin County, Iowa. It was built in 2017, so it is 8 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 43 vehicles a day, projected to reach 43 by 2044. The structure is 37 ft (11.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLark Ave
CrossesDrainage Ditch No 55
Location93212502
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.84323, -93.28159
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 2024
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 rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHL 93
Structure length37 ft (11.4 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 traffic43 (2022)
Projected traffic43 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Lark Ave over Drainage Ditch No 55 built?

It was built in 2017, making it 8 years old in 2025.

What condition is Lark Ave over Drainage Ditch No 55 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 2024.

How much traffic does Lark Ave over Drainage Ditch No 55 carry?

About 43 vehicles per day (2022 count).

How long is Lark Ave over Drainage Ditch No 55?

The structure is 37 ft (11.4 m) long with a longest span of 12 ft (3.7 m).

Who owns Lark Ave over Drainage Ditch No 55?

It is owned by the County Highway Agency.