US Bridges

Austin Ave over Old Soldier Ditch

Fair

Harrison County, Iowa · 079441802 · Structure no. 000000000178301

Built
1984
41 years old
Condition
Fair
inspected December 2023
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
568
2023 count
Owner
County
County Highway Agency

About this bridge

Austin Ave over Old Soldier Ditch is a steel culvert carrying Austin Ave over Old Soldier Ditch in Harrison County, Iowa. It was built in 1984, so it is 41 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 568 vehicles a day, roughly 30% of them trucks, projected to reach 568 by 2043. The structure is 24 ft (7.3 m) long.

Location

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CarriesAustin Ave
CrossesOld Soldier Ditch
Location079441802
RouteCounty Highway 0
CountyHarrison County
StateIowa
Coordinates41.65361, -96.02153
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
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 traffic568 (2023)
Projected traffic568 by 2043
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Austin Ave over Old Soldier Ditch built?

It was built in 1984, making it 41 years old in 2025.

What condition is Austin Ave over Old Soldier Ditch 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 December 2023.

How much traffic does Austin Ave over Old Soldier Ditch carry?

About 568 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is Austin Ave over Old Soldier Ditch?

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

Who owns Austin Ave over Old Soldier Ditch?

It is owned by the County Highway Agency.