US Bridges

Fir Ave over Drainage Ditch

Good

Worth County, Iowa · .6 M S of Ia 9 · Structure no. 000000000355952

Built
2012
13 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
207
2022 count
Owner
County
County Highway Agency

About this bridge

Fir Ave over Drainage Ditch is a concrete culvert carrying Fir Ave over Drainage Ditch in Worth 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 207 vehicles a day, projected to reach 207 by 2043. The structure is 46 ft (14 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesFir Ave
CrossesDrainage Ditch
Location.6 M S of Ia 9
RouteCounty Highway 0
CountyWorth County
StateIowa
Coordinates43.27588, -93.38856
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.
Culvert9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating50 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length46 ft (14 m)
Longest span14 ft (4.3 m)
Deck width44 ft (13.4 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic207 (2022)
Projected traffic207 by 2043
Trucks0%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fir Ave over Drainage Ditch built?

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

What condition is Fir Ave over Drainage Ditch 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 December 2023.

How much traffic does Fir Ave over Drainage Ditch carry?

About 207 vehicles per day (2022 count).

How long is Fir Ave over Drainage Ditch?

The structure is 46 ft (14 m) long with a longest span of 14 ft (4.3 m) and a deck 44 ft wide.

Who owns Fir Ave over Drainage Ditch?

It is owned by the County Highway Agency.