US Bridges

I 29 SB Ramp over Perry Creek Conduit

Fair

Woodbury County, Iowa · Wesley Pkwy. Ramp C · Structure no. 000000000604031

Built
2019
6 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
93 ft
1 main span
Daily traffic
6,200
2022 count
Owner
State
State Highway Agency

About this bridge

I 29 SB Ramp over Perry Creek Conduit is a prestressed concrete stringer/multi-beam or girder carrying I 29 SB Ramp over Perry Creek Conduit in Woodbury 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 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 6,200 vehicles a day, roughly 4% of them trucks, projected to reach 6,200 by 2044. The structure is 93 ft (28.4 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 29 SB Ramp
CrossesPerry Creek Conduit
LocationWesley Pkwy. Ramp C
RouteInterstate 29
CountyWoodbury County
StateIowa
Coordinates42.49055, -96.41111
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable 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

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length93 ft (28.4 m)
Longest span90 ft (27.4 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2022)
Projected traffic6,200 by 2044
Trucks4%
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 I 29 SB Ramp over Perry Creek Conduit built?

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

What condition is I 29 SB Ramp over Perry Creek Conduit 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 November 2024.

How much traffic does I 29 SB Ramp over Perry Creek Conduit carry?

About 6,200 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is I 29 SB Ramp over Perry Creek Conduit?

The structure is 93 ft (28.4 m) long with a longest span of 90 ft (27.4 m) and a deck 29 ft wide.

Who owns I 29 SB Ramp over Perry Creek Conduit?

It is owned by the State Highway Agency.