US Bridges

Ia 14 over US 34

Fair

Lucas County, Iowa · At Jct. US 34 · Structure no. 000000000034420

Built
1960
65 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
170 ft
3 main spans
Daily traffic
2,160
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 14 over US 34 is a prestressed concrete stringer/multi-beam or girder carrying Ia 14 over US 34 in Lucas County, Iowa. It was built in 1960, so it is 65 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 5 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 2,160 vehicles a day, roughly 11% of them trucks, projected to reach 2,160 by 2043. The structure is 170 ft (51.8 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 14
CrossesUS 34
LocationAt Jct. US 34
RouteState Highway 14
CountyLucas County
StateIowa
Coordinates41.00456, -93.30814
Functional classRural 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.5 US tons
Inventory rating18.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span69 ft (21 m)
Deck width57 ft (17.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,160 (2022)
Projected traffic2,160 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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 Ia 14 over US 34 built?

It was built in 1960, making it 65 years old in 2025.

What condition is Ia 14 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 July 2023.

How much traffic does Ia 14 over US 34 carry?

About 2,160 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 14 over US 34?

The structure is 170 ft (51.8 m) long with a longest span of 69 ft (21 m) and a deck 57 ft wide.

Who owns Ia 14 over US 34?

It is owned by the State Highway Agency.