US Bridges

Ia 10 over Dry Creek

Fair

Sioux County, Iowa · 0.9 Mi. E of Jct. Ia 12 · Structure no. 000000000048481

Built
1973
52 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
172 ft
3 main spans
Daily traffic
2,960
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 10 over Dry Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 10 over Dry Creek in Sioux County, Iowa. It was built in 1973, so it is 52 years old, older 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 2,960 vehicles a day, roughly 14% of them trucks, projected to reach 2,960 by 2042. The structure is 172 ft (52.4 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIa 10
CrossesDry Creek
Location0.9 Mi. E of Jct. Ia 12
RouteState Highway 10
StateIowa
Coordinates42.99678, -96.47128
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.8 US tons
Inventory rating33.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span57 ft (17.4 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,960 (2022)
Projected traffic2,960 by 2042
Trucks14%
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

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 Ia 10 over Dry Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Ia 10 over Dry 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 May 2024.

How much traffic does Ia 10 over Dry Creek carry?

About 2,960 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Ia 10 over Dry Creek?

The structure is 172 ft (52.4 m) long with a longest span of 57 ft (17.4 m) and a deck 47 ft wide.

Who owns Ia 10 over Dry Creek?

It is owned by the State Highway Agency.