US Bridges

US 18 WB over UPRR

Good

Cerro Gordo County, Iowa · 0.7 Mi. E of Jct. U.S. 65 · Structure no. 000000000606550

Built
1999
26 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
174 ft
3 main spans
Daily traffic
5,250
2022 count
Owner
State
State Highway Agency

About this bridge

US 18 WB over UPRR is a prestressed concrete stringer/multi-beam or girder carrying US 18 WB over UPRR in Cerro Gordo County, Iowa. It was built in 1999, so it is 26 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 5,250 vehicles a day, roughly 28% of them trucks, projected to reach 5,250 by 2042. The structure is 174 ft (53 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 18 WB
CrossesUPRR
Location0.7 Mi. E of Jct. U.S. 65
RouteU.S. Route 18
StateIowa
Coordinates43.10706, -93.18832
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.7 US tons
Inventory rating53.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length174 ft (53 m)
Longest span57 ft (17.4 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,250 (2022)
Projected traffic5,250 by 2042
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 US 18 WB over UPRR built?

It was built in 1999, making it 26 years old in 2025.

What condition is US 18 WB over UPRR 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 October 2023.

How much traffic does US 18 WB over UPRR carry?

About 5,250 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is US 18 WB over UPRR?

The structure is 174 ft (53 m) long with a longest span of 57 ft (17.4 m) and a deck 43 ft wide.

Who owns US 18 WB over UPRR?

It is owned by the State Highway Agency.