Local over Small Stream

Good

Louisa County, Iowa · 076053603 · Structure no. 000000000224951

Built: 1991; 34 years old
Condition: Good; inspected May 2022
Type: Slab; Concrete Continuous
Length: 78 ft; 3 main spans
Daily traffic: 35; 2022 count
Owner: County; County Highway Agency

About this bridge

Local over Small Stream is a concrete continuous slab carrying Local over Small Stream in Louisa County, Iowa. It was built in 1991, so it is 34 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 35 vehicles a day, projected to reach 35 by 2043. The structure is 78 ft (23.8 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesLocal

CrossesSmall Stream

Location076053603

RouteCounty Highway 0

CountyLouisa County

StateIowa

Coordinates41.35059, -91.37417

Functional classRural Local

Condition and inspection

Good

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

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionMay 2022

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating68.6 US tons

Inventory rating40.9 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length78 ft (23.8 m)

Longest span29 ft (8.8 m)

Deck width31 ft (9.6 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)

Projected traffic35 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed5 mi (8 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency

Maintained byCounty Highway Agency

Historic statusNot eligible for the National Register of Historic Places

Work proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Small Stream built?

It was built in 1991, making it 34 years old in 2025.

What condition is Local over Small Stream 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 May 2022.

How much traffic does Local over Small Stream carry?

About 35 vehicles per day (2022 count).

How long is Local over Small Stream?

The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 31 ft wide.

Who owns Local over Small Stream?

It is owned by the County Highway Agency.