US Bridges

US 69 over South White Breast Creek

Good

Clarke County, Iowa · 1.5 Mi. N of Jct. SR J12 · Structure no. 000000000020061

Built
1974
51 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
1,460
2022 count
Owner
State
State Highway Agency

About this bridge

US 69 over South White Breast Creek is a prestressed concrete stringer/multi-beam or girder carrying US 69 over South White Breast Creek in Clarke County, Iowa. It was built in 1974, so it is 51 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,460 vehicles a day, roughly 9% of them trucks, projected to reach 1,460 by 2043. The structure is 74 ft (22.6 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 69
CrossesSouth White Breast Creek
Location1.5 Mi. N of Jct. SR J12
RouteU.S. Route 69
StateIowa
Coordinates40.92148, -93.76769
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating86.1 US tons
Inventory rating45.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span70 ft (21.3 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,460 (2022)
Projected traffic1,460 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 69 over South White Breast Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is US 69 over South White Breast 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 August 2023.

How much traffic does US 69 over South White Breast Creek carry?

About 1,460 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is US 69 over South White Breast Creek?

The structure is 74 ft (22.6 m) long with a longest span of 70 ft (21.3 m) and a deck 35 ft wide.

Who owns US 69 over South White Breast Creek?

It is owned by the State Highway Agency.