US Bridges

SR X-23 over Reloc. US 34

Good

Henry County, Iowa · At Jct. U.S. 34 · Structure no. 000000000607340

Built
1998
27 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
235 ft
2 main spans
Daily traffic
2,010
2022 count
Owner
State
State Highway Agency

About this bridge

SR X-23 over Reloc. US 34 is a prestressed concrete stringer/multi-beam or girder carrying SR X-23 over Reloc. US 34 in Henry County, Iowa. It was built in 1998, so it is 27 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 2,010 vehicles a day, roughly 2% of them trucks, projected to reach 2,010 by 2042. The structure is 235 ft (71.6 m) long and 58 ft wide.

CarriesSR X-23
CrossesReloc. US 34
LocationAt Jct. U.S. 34
RouteCounty Highway 0
StateIowa
Coordinates40.91363, -91.4139
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating63.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length235 ft (71.6 m)
Longest span116 ft (35.4 m)
Deck width58 ft (17.8 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,010 (2022)
Projected traffic2,010 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 SR X-23 over Reloc. US 34 built?

It was built in 1998, making it 27 years old in 2025.

What condition is SR X-23 over Reloc. US 34 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 April 2023.

How much traffic does SR X-23 over Reloc. US 34 carry?

About 2,010 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is SR X-23 over Reloc. US 34?

The structure is 235 ft (71.6 m) long with a longest span of 116 ft (35.4 m) and a deck 58 ft wide.

Who owns SR X-23 over Reloc. US 34?

It is owned by the State Highway Agency.