US Bridges

E Mlk Jr Pkwy over NS RR

Good

Polk County, Iowa · 078240207 · Structure no. 000000000505365

Built
2016
9 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
143 ft
1 main span
Daily traffic
14,883
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

E Mlk Jr Pkwy over NS RR is a prestressed concrete stringer/multi-beam or girder carrying E Mlk Jr Pkwy over NS RR in Polk County, Iowa. It was built in 2016, so it is 9 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 14,883 vehicles a day, projected to reach 14,883 by 2043. The structure is 143 ft (43.6 m) long and 52 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesE Mlk Jr Pkwy
CrossesNS RR
Location078240207
RouteCity Street 0
CountyPolk County
StateIowa
Coordinates41.58517, -93.5781
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating51.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length143 ft (43.6 m)
Longest span140 ft (42.7 m)
Deck width52 ft (16 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,883 (2022)
Projected traffic14,883 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed9.9 mi (16 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 E Mlk Jr Pkwy over NS RR built?

It was built in 2016, making it 9 years old in 2025.

What condition is E Mlk Jr Pkwy over NS RR 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 July 2023.

How much traffic does E Mlk Jr Pkwy over NS RR carry?

About 14,883 vehicles per day (2022 count).

How long is E Mlk Jr Pkwy over NS RR?

The structure is 143 ft (43.6 m) long with a longest span of 140 ft (42.7 m) and a deck 52 ft wide.

Who owns E Mlk Jr Pkwy over NS RR?

It is owned by the City or Municipal Highway Agency.