US Bridges

Rohret RD over US 218

Fair

Johnson County, Iowa · 1.1 Mi. N of Jct. Iowa #1 · Structure no. 000000000605550

Built
1983
42 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
410 ft
4 main spans
Daily traffic
4,601
2022 count
Owner
State
State Highway Agency

About this bridge

Rohret RD over US 218 is a steel continuous stringer/multi-beam or girder carrying Rohret RD over US 218 in Johnson County, Iowa. It was built in 1983, so it is 42 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 4,601 vehicles a day, projected to reach 4,601 by 2044. The structure is 410 ft (125 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRohret RD
CrossesUS 218
Location1.1 Mi. N of Jct. Iowa #1
RouteCity Street 0
CountyJohnson County
StateIowa
Coordinates41.64614, -91.58331
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.6 US tons
Inventory rating35.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length410 ft (125 m)
Longest span132 ft (40.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,601 (2022)
Projected traffic4,601 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 Rohret RD over US 218 built?

It was built in 1983, making it 42 years old in 2025.

What condition is Rohret RD over US 218 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 April 2024.

How much traffic does Rohret RD over US 218 carry?

About 4,601 vehicles per day (2022 count).

How long is Rohret RD over US 218?

The structure is 410 ft (125 m) long with a longest span of 132 ft (40.2 m) and a deck 33 ft wide.

Who owns Rohret RD over US 218?

It is owned by the State Highway Agency.