US Bridges

Mallard Ave over Maynes Creek

Fair

Franklin County, Iowa · 091203002 · Structure no. 000000000157031

Built
2005
20 years old
Condition
Fair
inspected June 2021
Type
Culvert
Concrete Continuous
Length
43 ft
3 main spans
Daily traffic
1,277
2022 count
Owner
County
County Highway Agency

About this bridge

Mallard Ave over Maynes Creek is a concrete continuous culvert carrying Mallard Ave over Maynes Creek in Franklin County, Iowa. It was built in 2005, so it is 20 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,277 vehicles a day, projected to reach 1,277 by 2043. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMallard Ave
CrossesMaynes Creek
Location091203002
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.66505, -93.26175
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length43 ft (13.1 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 traffic1,277 (2022)
Projected traffic1,277 by 2043
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Mallard Ave over Maynes Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Mallard Ave over Maynes Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2021.

How much traffic does Mallard Ave over Maynes Creek carry?

About 1,277 vehicles per day (2022 count).

How long is Mallard Ave over Maynes Creek?

The structure is 43 ft (13.1 m) long with a longest span of 14 ft (4.3 m).

Who owns Mallard Ave over Maynes Creek?

It is owned by the County Highway Agency.