US Bridges

Ia 14 over UP RR Madison&market ST

Fair

Marshall County, Iowa · In Marshalltown · Structure no. 000000000007911

Built
1985
40 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
862 ft
10 main spans
Daily traffic
13,300
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 14 over UP RR Madison&market ST is a prestressed concrete stringer/multi-beam or girder carrying Ia 14 over UP RR Madison&market ST in Marshall County, Iowa. It was built in 1985, so it is 40 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 13,300 vehicles a day, roughly 3% of them trucks, projected to reach 13,300 by 2043. The structure is 862 ft (262.7 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 14
CrossesUP RR Madison&market ST
LocationIn Marshalltown
RouteState Highway 14
CountyMarshall County
StateIowa
Coordinates42.04165, -92.90795
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92.5 US tons
Inventory rating55.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length862 ft (262.7 m)
Longest span96 ft (29.3 m)
Deck width64 ft (19.5 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,300 (2022)
Projected traffic13,300 by 2043
Trucks3%
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 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ia 14 over UP RR Madison&market ST built?

It was built in 1985, making it 40 years old in 2025.

What condition is Ia 14 over UP RR Madison&market 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 October 2023.

How much traffic does Ia 14 over UP RR Madison&market ST carry?

About 13,300 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Ia 14 over UP RR Madison&market ST?

The structure is 862 ft (262.7 m) long with a longest span of 96 ft (29.3 m) and a deck 64 ft wide.

Who owns Ia 14 over UP RR Madison&market ST?

It is owned by the State Highway Agency.