US Bridges

CO Rd-S 14th over Over UP RR

Fair

Clinton County, Iowa · 081061306 · Structure no. 000000000002350

Built
1957
68 years old, rebuilt 1982
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
303 ft
4 main spans
Daily traffic
1,550
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

CO Rd-S 14th over Over UP RR is a steel continuous stringer/multi-beam or girder carrying CO Rd-S 14th over Over UP RR in Clinton County, Iowa. It was built in 1957 and reconstructed in 1982, so it is 68 years old, older 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 1,550 vehicles a day, roughly 17% of them trucks, projected to reach 1,550 by 2043. The structure is 303 ft (92.4 m) long and 39 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCO Rd-S 14th
CrossesOver UP RR
Location081061306
RouteCity Street 0
CountyClinton County
StateIowa
Coordinates41.81722, -90.21819
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.1 US tons
Inventory rating44.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span84 ft (25.6 m)
Deck width39 ft (11.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2021)
Projected traffic1,550 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was CO Rd-S 14th over Over UP RR built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1982.

What condition is CO Rd-S 14th over 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 May 2023.

How much traffic does CO Rd-S 14th over Over UP RR carry?

About 1,550 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is CO Rd-S 14th over Over UP RR?

The structure is 303 ft (92.4 m) long with a longest span of 84 ft (25.6 m) and a deck 39 ft wide.

Who owns CO Rd-S 14th over Over UP RR?

It is owned by the City or Municipal Highway Agency.