US Bridges

R69 330th Ave over Otter Creek

Good

Clarke County, Iowa · 072240204 · Structure no. 000000000114371

Built
2014
11 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
120
2022 count
Owner
County
County Highway Agency

About this bridge

R69 330th Ave over Otter Creek is a concrete continuous slab carrying R69 330th Ave over Otter Creek in Clarke 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 120 vehicles a day, projected to reach 120 by 2043. The structure is 123 ft (37.5 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesR69 330th Ave
CrossesOtter Creek
Location072240204
RouteCounty Highway 0
StateIowa
Coordinates41.06619, -93.59077
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length123 ft (37.5 m)
Longest span47 ft (14.3 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic120 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was R69 330th Ave over Otter Creek built?

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

What condition is R69 330th Ave over Otter Creek 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 September 2023.

How much traffic does R69 330th Ave over Otter Creek carry?

About 120 vehicles per day (2022 count).

How long is R69 330th Ave over Otter Creek?

The structure is 123 ft (37.5 m) long with a longest span of 47 ft (14.3 m) and a deck 27 ft wide.

Who owns R69 330th Ave over Otter Creek?

It is owned by the County Highway Agency.