US Bridges

US 218 over Abandoned RR

Fair

Benton County, Iowa · 2.6 Mi. N of N Jct. US 30 · Structure no. 000000000014301

Built
1974
51 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
175 ft
3 main spans
Daily traffic
2,420
2023 count
Owner
State
State Highway Agency

About this bridge

US 218 over Abandoned RR is a prestressed concrete stringer/multi-beam or girder carrying US 218 over Abandoned RR in Benton County, Iowa. It was built in 1974, so it is 51 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 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 2,420 vehicles a day, roughly 20% of them trucks, projected to reach 2,420 by 2043. The structure is 175 ft (53.3 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 218
CrossesAbandoned RR
Location2.6 Mi. N of N Jct. US 30
RouteU.S. Route 218
StateIowa
Coordinates42.00161, -92.02861
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 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 alignment6: Equal to present minimum criteria
Operating rating76.2 US tons
Inventory rating39.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span65 ft (19.8 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,420 (2023)
Projected traffic2,420 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed6.2 mi (10 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 over Abandoned RR built?

It was built in 1974, making it 51 years old in 2025.

What condition is US 218 over Abandoned 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 2023.

How much traffic does US 218 over Abandoned RR carry?

About 2,420 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is US 218 over Abandoned RR?

The structure is 175 ft (53.3 m) long with a longest span of 65 ft (19.8 m) and a deck 47 ft wide.

Who owns US 218 over Abandoned RR?

It is owned by the State Highway Agency.