US Bridges

73rd ST over US 34

Fair

Wapello County, Iowa · 2.1 Mi. E of E Jct. US 63 · Structure no. 000000000608785

Built
2006
19 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
396 ft
4 main spans
Daily traffic
1,370
2022 count
Owner
State
State Highway Agency

About this bridge

73rd ST over US 34 is a prestressed concrete stringer/multi-beam or girder carrying 73rd ST over US 34 in Wapello 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 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 1,370 vehicles a day, roughly 10% of them trucks, projected to reach 1,370 by 2042. The structure is 396 ft (120.7 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Carries73rd ST
CrossesUS 34
Location2.1 Mi. E of E Jct. US 63
RouteCounty Highway 0
StateIowa
Coordinates40.99979, -92.34333
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length396 ft (120.7 m)
Longest span126 ft (38.4 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,370 (2022)
Projected traffic1,370 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 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 73rd ST over US 34 built?

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

What condition is 73rd ST over US 34 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 November 2023.

How much traffic does 73rd ST over US 34 carry?

About 1,370 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is 73rd ST over US 34?

The structure is 396 ft (120.7 m) long with a longest span of 126 ft (38.4 m) and a deck 43 ft wide.

Who owns 73rd ST over US 34?

It is owned by the State Highway Agency.