US Bridges

South Park RD over I 80

Good

Johnson County, Iowa · 0.4 MI.WI-80/I-380INTCHG · Structure no. 000000000031981

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
341 ft
2 main spans
Daily traffic
970
2022 count
Owner
State
State Highway Agency

About this bridge

South Park RD over I 80 is a steel continuous stringer/multi-beam or girder carrying South Park RD over I 80 in Johnson County, Iowa. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 970 vehicles a day, projected to reach 970 by 2043. The structure is 341 ft (103.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSouth Park RD
CrossesI 80
Location0.4 MI.WI-80/I-380INTCHG
RouteCity Street 0
CountyJohnson County
StateIowa
Coordinates41.69381, -91.6469
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 20 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum 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
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length341 ft (103.8 m)
Longest span166 ft (50.6 m)
Deck width44 ft (13.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic970 (2022)
Projected traffic970 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 South Park RD over I 80 built?

It was built in 2023, making it 2 years old in 2025.

What condition is South Park RD over I 80 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 December 2023.

How much traffic does South Park RD over I 80 carry?

About 970 vehicles per day (2022 count).

How long is South Park RD over I 80?

The structure is 341 ft (103.8 m) long with a longest span of 166 ft (50.6 m) and a deck 44 ft wide.

Who owns South Park RD over I 80?

It is owned by the State Highway Agency.