US Bridges

12th ST NW over UP RR

Fair

Cerro Gordo County, Iowa · 000000000 · Structure no. 000000000504720

Built
2005
20 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
658 ft
5 main spans
Daily traffic
10,174
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

12th ST NW over UP RR is a prestressed concrete stringer/multi-beam or girder carrying 12th ST NW over UP RR in Cerro Gordo County, Iowa. It was built in 2005, so it is 20 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 10,174 vehicles a day, projected to reach 10,174 by 2044. The structure is 658 ft (200.6 m) long and 56 ft wide.

Location

Open in Google Maps
Carries12th ST NW
CrossesUP RR
Location000000000
RouteCity Street 0
CountyCerro Gordo County
StateIowa
Coordinates43.16277, -93.21272
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating61.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length658 ft (200.6 m)
Longest span132 ft (40.2 m)
Deck width56 ft (17.1 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,174 (2022)
Projected traffic10,174 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 12th ST NW over UP RR built?

It was built in 2005, making it 20 years old in 2025.

What condition is 12th ST NW over UP RR 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 January 2024.

How much traffic does 12th ST NW over UP RR carry?

About 10,174 vehicles per day (2022 count).

How long is 12th ST NW over UP RR?

The structure is 658 ft (200.6 m) long with a longest span of 132 ft (40.2 m) and a deck 56 ft wide.

Who owns 12th ST NW over UP RR?

It is owned by the City or Municipal Highway Agency.