US Bridges

US 34 WB over W 55

Good

Henry County, Iowa · 3.6 Mi. W of W JCT US 218 · Structure no. 000000000608600

Built
2002
23 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
194 ft
3 main spans
Daily traffic
2,700
2022 count
Owner
State
State Highway Agency

About this bridge

US 34 WB over W 55 is a prestressed concrete stringer/multi-beam or girder carrying US 34 WB over W 55 in Henry County, Iowa. It was built in 2002, so it is 23 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 2,700 vehicles a day, roughly 29% of them trucks, projected to reach 2,700 by 2044. The structure is 194 ft (59.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 34 WB
CrossesW 55
Location3.6 Mi. W of W JCT US 218
RouteU.S. Route 34
StateIowa
Coordinates40.98474, -91.61196
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.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.7 US tons
Inventory rating38.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length194 ft (59.1 m)
Longest span107 ft (32.6 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2022)
Projected traffic2,700 by 2044
Trucks29%
Lanes on structure2
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 34 WB over W 55 built?

It was built in 2002, making it 23 years old in 2025.

What condition is US 34 WB over W 55 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 December 2024.

How much traffic does US 34 WB over W 55 carry?

About 2,700 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is US 34 WB over W 55?

The structure is 194 ft (59.1 m) long with a longest span of 107 ft (32.6 m) and a deck 43 ft wide.

Who owns US 34 WB over W 55?

It is owned by the State Highway Agency.