US Bridges

Center ST over Middle Minerva Creek

Fair

Story County, Iowa · 000000000 · Structure no. 000000000012880

Built
1974
51 years old
Condition
Fair
inspected November 2022
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
435
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Center ST over Middle Minerva Creek is a concrete continuous culvert carrying Center ST over Middle Minerva 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 fair condition with a lowest component rating of 6 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 435 vehicles a day, projected to reach 435 by 2043. The structure is 38 ft (11.6 m) long.

Location

Open in Google Maps
CarriesCenter ST
CrossesMiddle Minerva Creek
Location000000000
RouteCity Street 0
CountyStory County
StateIowa
Coordinates42.15932, -93.29729
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
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 adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating33.4 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
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 traffic435 (2022)
Projected traffic435 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Center ST over Middle Minerva Creek built?

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

What condition is Center ST over Middle Minerva Creek 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 November 2022.

How much traffic does Center ST over Middle Minerva Creek carry?

About 435 vehicles per day (2022 count).

How long is Center ST over Middle Minerva Creek?

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

Who owns Center ST over Middle Minerva Creek?

It is owned by the City or Municipal Highway Agency.