US Bridges

Main ST over US 34

Fair

Wapello County, Iowa · 1.4 Mi. E of W Jct. US 63 · Structure no. 000000000050570

Built
1967
58 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
183 ft
4 main spans
Daily traffic
1,432
2022 count
Owner
State
State Highway Agency

About this bridge

Main ST over US 34 is a concrete continuous slab carrying Main ST over US 34 in Wapello County, Iowa. It was built in 1967, so it is 58 years old, older 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 1,432 vehicles a day, projected to reach 1,432 by 2044. The structure is 183 ft (55.8 m) long and 52 ft wide.

CarriesMain ST
CrossesUS 34
Location1.4 Mi. E of W Jct. US 63
RouteCity Street 0
StateIowa
Coordinates41.00849, -92.38897
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating68.6 US tons
Inventory rating41.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length183 ft (55.8 m)
Longest span55 ft (16.8 m)
Deck width52 ft (16 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,432 (2022)
Projected traffic1,432 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Main ST over US 34 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Main 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 September 2024.

How much traffic does Main ST over US 34 carry?

About 1,432 vehicles per day (2022 count).

How long is Main ST over US 34?

The structure is 183 ft (55.8 m) long with a longest span of 55 ft (16.8 m) and a deck 52 ft wide.

Who owns Main ST over US 34?

It is owned by the State Highway Agency.