US Bridges

US 218 SB over Cp RR

Fair

Washington County, Iowa · 0.2 Mi. N of Jct. Ia 92 · Structure no. 000000000606870

Built
1996
29 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
192 ft
3 main spans
Daily traffic
5,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 218 SB over Cp RR is a prestressed concrete stringer/multi-beam or girder carrying US 218 SB over Cp RR in Washington County, Iowa. It was built in 1996, so it is 29 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 5,600 vehicles a day, roughly 23% of them trucks, projected to reach 5,600 by 2043. The structure is 192 ft (58.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 218 SB
CrossesCp RR
Location0.2 Mi. N of Jct. Ia 92
RouteU.S. Route 218
StateIowa
Coordinates41.29391, -91.53465
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
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 rating67.2 US tons
Inventory rating44.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span64 ft (19.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2023)
Projected traffic5,600 by 2043
Trucks23%
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 218 SB over Cp RR built?

It was built in 1996, making it 29 years old in 2025.

What condition is US 218 SB over Cp 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 February 2024.

How much traffic does US 218 SB over Cp RR carry?

About 5,600 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is US 218 SB over Cp RR?

The structure is 192 ft (58.5 m) long with a longest span of 64 ft (19.5 m) and a deck 43 ft wide.

Who owns US 218 SB over Cp RR?

It is owned by the State Highway Agency.