US Bridges

US 218 Ramp G over US 218

Good

Henry County, Iowa · 3.3 Mi. N of S JCT US 34 · Structure no. 000000000608160

Built
2001
24 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
381 ft
4 main spans
Daily traffic
4,890
2023 count
Owner
State
State Highway Agency

About this bridge

US 218 Ramp G over US 218 is a prestressed concrete stringer/multi-beam or girder carrying US 218 Ramp G over US 218 in Henry County, Iowa. It was built in 2001, so it is 24 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 4,890 vehicles a day, roughly 18% of them trucks, projected to reach 4,890 by 2043. The structure is 381 ft (116.1 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 218 Ramp G
CrossesUS 218
Location3.3 Mi. N of S JCT US 34
RouteState Highway 438
StateIowa
Coordinates40.99423, -91.54453
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 inspectionJanuary 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 rating96.2 US tons
Inventory rating51.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length381 ft (116.1 m)
Longest span132 ft (40.2 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,890 (2023)
Projected traffic4,890 by 2043
Trucks18%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 Ramp G over US 218 built?

It was built in 2001, making it 24 years old in 2025.

What condition is US 218 Ramp G over US 218 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 January 2024.

How much traffic does US 218 Ramp G over US 218 carry?

About 4,890 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is US 218 Ramp G over US 218?

The structure is 381 ft (116.1 m) long with a longest span of 132 ft (40.2 m) and a deck 29 ft wide.

Who owns US 218 Ramp G over US 218?

It is owned by the State Highway Agency.