US Bridges

Ia 1 over Camp Creek

Good

Washington County, Iowa · 3.1 Mi. S of Jct. Ia 22 · Structure no. 000000000051661

Built
2019
6 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
124 ft
1 main span
Daily traffic
4,120
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 1 over Camp Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 1 over Camp Creek in Washington County, Iowa. It was built in 2019, so it is 6 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 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 4,120 vehicles a day, roughly 10% of them trucks, projected to reach 4,120 by 2044. The structure is 124 ft (37.8 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIa 1
CrossesCamp Creek
Location3.1 Mi. S of Jct. Ia 22
RouteState Highway 1
StateIowa
Coordinates41.44086, -91.71499
Functional classRural Principal Arterial - Other

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length124 ft (37.8 m)
Longest span122 ft (37.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,120 (2022)
Projected traffic4,120 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 1 over Camp Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is Ia 1 over Camp 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 March 2024.

How much traffic does Ia 1 over Camp Creek carry?

About 4,120 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ia 1 over Camp Creek?

The structure is 124 ft (37.8 m) long with a longest span of 122 ft (37.1 m) and a deck 47 ft wide.

Who owns Ia 1 over Camp Creek?

It is owned by the State Highway Agency.