US Bridges

Ia 14 over Chariton River

Good

Lucas County, Iowa · 0.9 Mi. S of Jct. US 34 · Structure no. 000000000034411

Built
1988
37 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
234 ft
3 main spans
Daily traffic
2,270
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 14 over Chariton River is a prestressed concrete stringer/multi-beam or girder carrying Ia 14 over Chariton River in Lucas County, Iowa. It was built in 1988, so it is 37 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 2,270 vehicles a day, roughly 10% of them trucks, projected to reach 2,270 by 2043. The structure is 234 ft (71.3 m) long and 43 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesIa 14
CrossesChariton River
Location0.9 Mi. S of Jct. US 34
RouteState Highway 14
StateIowa
Coordinates40.99194, -93.30805
Functional classRural Minor Arterial

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.3 US tons
Inventory rating52.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length234 ft (71.3 m)
Longest span82 ft (25 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,270 (2022)
Projected traffic2,270 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 14 over Chariton River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Ia 14 over Chariton River 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 July 2023.

How much traffic does Ia 14 over Chariton River carry?

About 2,270 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ia 14 over Chariton River?

The structure is 234 ft (71.3 m) long with a longest span of 82 ft (25 m) and a deck 43 ft wide.

Who owns Ia 14 over Chariton River?

It is owned by the State Highway Agency.