US Bridges

S 16th ST (isu) over Worrell Creek

Good

Story County, Iowa · 0.1 Mile E of Univ Blvd · Structure no. 000000000500760

Built
1974
51 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
9,754
2022 count
Owner
State
Other State Agency

About this bridge

S 16th ST (isu) over Worrell Creek is a concrete continuous culvert carrying S 16th ST (isu) over Worrell Creek in Story County, Iowa. It was built in 1974, so it is 51 years old, older 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 9,754 vehicles a day, projected to reach 9,754 by 2044. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS 16th ST (isu)
CrossesWorrell Creek
Location0.1 Mile E of Univ Blvd
RouteCity Street 0
StateIowa
Coordinates42.01028, -93.63273
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating37.6 US tons
Inventory rating22.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.2 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 traffic9,754 (2022)
Projected traffic9,754 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State 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 S 16th ST (isu) over Worrell Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is S 16th ST (isu) over Worrell 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 March 2024.

How much traffic does S 16th ST (isu) over Worrell Creek carry?

About 9,754 vehicles per day (2022 count).

How long is S 16th ST (isu) over Worrell Creek?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m).

Who owns S 16th ST (isu) over Worrell Creek?

It is owned by the Other State Agency and maintained by the State Highway Agency.