US Bridges

US 34 EB over Ash Ave

Good

Jefferson County, Iowa · At Jct. SR H43 · Structure no. 000000000608955

Built
2006
19 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
149 ft
3 main spans
Daily traffic
3,650
2022 count
Owner
State
State Highway Agency

About this bridge

US 34 EB over Ash Ave is a prestressed concrete stringer/multi-beam or girder carrying US 34 EB over Ash Ave in Jefferson County, Iowa. It was built in 2006, so it is 19 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 3,650 vehicles a day, roughly 20% of them trucks, projected to reach 3,650 by 2044. The structure is 149 ft (45.4 m) long and 43 ft wide.

CarriesUS 34 EB
CrossesAsh Ave
LocationAt Jct. SR H43
RouteU.S. Route 34
StateIowa
Coordinates41.00371, -92.16332
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 inspectionNovember 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 rating86 US tons
Inventory rating49.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length149 ft (45.4 m)
Longest span62 ft (18.9 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,650 (2022)
Projected traffic3,650 by 2044
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 EB over Ash Ave built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 34 EB over Ash Ave 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 November 2024.

How much traffic does US 34 EB over Ash Ave carry?

About 3,650 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is US 34 EB over Ash Ave?

The structure is 149 ft (45.4 m) long with a longest span of 62 ft (18.9 m) and a deck 43 ft wide.

Who owns US 34 EB over Ash Ave?

It is owned by the State Highway Agency.