US Bridges

Muscatine Ave over Ralston Ck S Branch

Fair

Johnson County, Iowa · 079061400 · Structure no. 000000000503655

Built
1972
53 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
9,524
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Muscatine Ave over Ralston Ck S Branch is a concrete continuous culvert carrying Muscatine Ave over Ralston Ck S Branch in Johnson County, Iowa. It was built in 1972, so it is 53 years old, older 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 5 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 9,524 vehicles a day, projected to reach 9,524 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMuscatine Ave
CrossesRalston Ck S Branch
Location079061400
RouteCity Street 0
CountyJohnson County
StateIowa
Coordinates41.65149, -91.50727
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,524 (2022)
Projected traffic9,524 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 Muscatine Ave over Ralston Ck S Branch built?

It was built in 1972, making it 53 years old in 2025.

What condition is Muscatine Ave over Ralston Ck S Branch 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 June 2023.

How much traffic does Muscatine Ave over Ralston Ck S Branch carry?

About 9,524 vehicles per day (2022 count).

How long is Muscatine Ave over Ralston Ck S Branch?

The structure is 40 ft (12.2 m) long with a longest span of 15 ft (4.6 m).

Who owns Muscatine Ave over Ralston Ck S Branch?

It is owned by the City or Municipal Highway Agency.