US Bridges

Scott Blvd over Ralston Creek N. Branch

Good

Johnson County, Iowa · 079060100 · Structure no. 000000000504565

Built
2003
22 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
4,858
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Scott Blvd over Ralston Creek N. Branch is a concrete continuous culvert carrying Scott Blvd over Ralston Creek N. Branch in Johnson County, Iowa. It was built in 2003, so it is 22 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 4,858 vehicles a day, projected to reach 4,858 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesScott Blvd
CrossesRalston Creek N. Branch
Location079060100
RouteCity Street 0
CountyJohnson County
StateIowa
Coordinates41.67357, -91.48667
Functional classUrban Minor 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 inspectionJune 2023
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 traffic4,858 (2022)
Projected traffic4,858 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Scott Blvd over Ralston Creek N. Branch built?

It was built in 2003, making it 22 years old in 2025.

What condition is Scott Blvd over Ralston Creek N. Branch 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 June 2023.

How much traffic does Scott Blvd over Ralston Creek N. Branch carry?

About 4,858 vehicles per day (2022 count).

How long is Scott Blvd over Ralston Creek N. Branch?

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

Who owns Scott Blvd over Ralston Creek N. Branch?

It is owned by the City or Municipal Highway Agency.