Local Road over Spring Creek

Fair

Lyon County, Iowa · 099461701 · Structure no. 000000000230161

Built: 1981; 44 years old
Condition: Fair; inspected July 2023
Type: Culvert; Concrete Continuous
Length: 48 ft; 4 main spans
Daily traffic: 30; 2022 count
Owner: County; County Highway Agency

About this bridge

Local Road over Spring Creek is a concrete continuous culvert carrying Local Road over Spring Creek in Lyon County, Iowa. It was built in 1981, so it is 44 years old, younger 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 5 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 30 vehicles a day, projected to reach 30 by 2043. The structure is 48 ft (14.6 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesLocal Road

CrossesSpring Creek

Location099461701

RouteCounty Highway 0

CountyLyon County

StateIowa

Coordinates43.40415, -96.30807

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.

Component	Rating	Meaning
Channel and channel protection	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.

Last inspectionJuly 2023

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 alignment8: Equal to present desirable criteria

Operating rating54 US tons

Inventory rating32.3 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans4

Design loadH 20

Structure length48 ft (14.6 m)

Longest span12 ft (3.7 m)

Deck width30 ft (9.1 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)

Projected traffic30 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency

Maintained byCounty Highway Agency

Historic statusPossibly eligible for the National Register; requires further investigation

Work proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was Local Road over Spring Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Local Road over Spring 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 July 2023.

How much traffic does Local Road over Spring Creek carry?

About 30 vehicles per day (2022 count).

How long is Local Road over Spring Creek?

The structure is 48 ft (14.6 m) long with a longest span of 12 ft (3.7 m) and a deck 30 ft wide.

Who owns Local Road over Spring Creek?

It is owned by the County Highway Agency.