US Bridges

Ia 5 Ramp C NB over Drainage

Good

Polk County, Iowa · 1.0 Mile S of I-35 Junct · Structure no. 000000000608185

Built
2000
25 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
1,220
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 5 Ramp C NB over Drainage is a concrete continuous culvert carrying Ia 5 Ramp C NB over Drainage in Polk County, Iowa. It was built in 2000, so it is 25 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 1,220 vehicles a day, roughly 8% of them trucks, projected to reach 1,220 by 2044. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 5 Ramp C NB
CrossesDrainage
Location1.0 Mile S of I-35 Junct
RouteState Highway 5
CountyPolk County
StateIowa
Coordinates41.5238, -93.75187
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,220 (2022)
Projected traffic1,220 by 2044
Trucks8%
Lanes on structure1
Traffic directionOne-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 5 Ramp C NB over Drainage built?

It was built in 2000, making it 25 years old in 2025.

What condition is Ia 5 Ramp C NB over Drainage 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 5 Ramp C NB over Drainage carry?

About 1,220 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ia 5 Ramp C NB over Drainage?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Ia 5 Ramp C NB over Drainage?

It is owned by the State Highway Agency.