Local (lwc) over Stream

Fair

Benton County, Iowa · 082123604 · Structure no. 000000000070731

Built: 1977; 48 years old
Condition: Fair; inspected April 2023
Type: Slab; Steel
Length: 25 ft; 1 main span
Daily traffic: 45; 2021 count
Owner: County; County Highway Agency

About this bridge

Local (lwc) over Stream is a steel slab carrying Local (lwc) over Stream in Benton County, Iowa. It was built in 1977, so it is 48 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 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 45 vehicles a day, projected to reach 45 by 2043. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesLocal (lwc)

CrossesStream

Location082123604

RouteCounty Highway 0

CountyBenton County

StateIowa

Coordinates41.87152, -92.19571

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
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionApril 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

Deck geometry7: Better than present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating59.3 US tons

Inventory rating35.5 US tons

Structure

Structure typeSlab

MaterialSteel

DeckConcrete, cast-in-place

Main spans1

Design loadUnknown

Structure length25 ft (7.6 m)

Longest span23 ft (7 m)

Deck width28 ft (8.5 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2021)

Projected traffic45 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed8.1 mi (13 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was Local (lwc) over Stream built?

It was built in 1977, making it 48 years old in 2025.

What condition is Local (lwc) over Stream 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 April 2023.

How much traffic does Local (lwc) over Stream carry?

About 45 vehicles per day (2021 count).

How long is Local (lwc) over Stream?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 28 ft wide.

Who owns Local (lwc) over Stream?

It is owned by the County Highway Agency.