US Bridges

South 16th Street over Creek

Good

Story County, Iowa · 0.25 MI W of Grand Ave · Structure no. 000000000505750

Built
1994
31 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
9,121
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

South 16th Street over Creek is a concrete continuous culvert carrying South 16th Street over Creek in Story County, Iowa. It was built in 1994, so it is 31 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 9,121 vehicles a day, projected to reach 9,121 by 2044. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSouth 16th Street
CrossesCreek
Location0.25 MI W of Grand Ave
RouteCity Street 0
StateIowa
Coordinates42.00835, -93.62488
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.7 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 traffic9,121 (2023)
Projected traffic9,121 by 2044
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 South 16th Street over Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is South 16th Street over Creek 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 April 2024.

How much traffic does South 16th Street over Creek carry?

About 9,121 vehicles per day (2023 count).

How long is South 16th Street over Creek?

The structure is 25 ft (7.7 m) long with a longest span of 12 ft (3.7 m).

Who owns South 16th Street over Creek?

It is owned by the City or Municipal Highway Agency.