US Bridges

So 16th ST over Br of Chariton River

Good

Lucas County, Iowa · 072213006 · Structure no. 000000000001771

Built
1998
27 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
230
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

So 16th ST over Br of Chariton River is a concrete continuous culvert carrying So 16th ST over Br of Chariton River in Lucas County, Iowa. It was built in 1998, so it is 27 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 230 vehicles a day, projected to reach 230 by 2044. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSo 16th ST
CrossesBr of Chariton River
Location072213006
RouteCity Street 0
StateIowa
Coordinates41.00691, -93.32006
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2022)
Projected traffic230 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$17,000
NavigationNo navigation control on waterway

Frequently asked questions

When was So 16th ST over Br of Chariton River built?

It was built in 1998, making it 27 years old in 2025.

What condition is So 16th ST over Br of 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 November 2024.

How much traffic does So 16th ST over Br of Chariton River carry?

About 230 vehicles per day (2022 count).

How long is So 16th ST over Br of Chariton River?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns So 16th ST over Br of Chariton River?

It is owned by the City or Municipal Highway Agency.