US Bridges

S 3rd ST over UP RR & ST

Fair

Marshall County, Iowa · 084183500 · Structure no. 000000000503800

Built
1984
41 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
854 ft
12 main spans
Daily traffic
9,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

S 3rd ST over UP RR & ST is a prestressed concrete stringer/multi-beam or girder carrying S 3rd ST over UP RR & ST in Marshall County, Iowa. It was built in 1984, so it is 41 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 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 9,000 vehicles a day, roughly 2% of them trucks, projected to reach 9,000 by 2043. The structure is 854 ft (260.3 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS 3rd ST
CrossesUP RR & ST
Location084183500
RouteCity Street 0
CountyMarshall County
StateIowa
Coordinates42.03943, -92.91974
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating40.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length854 ft (260.3 m)
Longest span97 ft (29.6 m)
Deck width69 ft (21 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2022)
Projected traffic9,000 by 2043
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S 3rd ST over UP RR & ST built?

It was built in 1984, making it 41 years old in 2025.

What condition is S 3rd ST over UP RR & ST 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 July 2023.

How much traffic does S 3rd ST over UP RR & ST carry?

About 9,000 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is S 3rd ST over UP RR & ST?

The structure is 854 ft (260.3 m) long with a longest span of 97 ft (29.6 m) and a deck 69 ft wide.

Who owns S 3rd ST over UP RR & ST?

It is owned by the City or Municipal Highway Agency.