US Bridges

Local Road over Small Stream

PoorPosted for load

Washington County, Iowa · 077060804 · Structure no. 000000000337380

Built
1966
59 years old
Condition
Poor
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
80
2022 count
Owner
County
County Highway Agency

About this bridge

Local Road over Small Stream is a prestressed concrete tee beam carrying Local Road over Small Stream in Washington County, Iowa. It was built in 1966, so it is 59 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 80 vehicles a day, projected to reach 80 by 2043. The structure is 45 ft (13.7 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLocal Road
CrossesSmall Stream
Location077060804
RouteCounty Highway 0
StateIowa
Coordinates41.49176, -91.57254
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating15 US tons
Inventory rating10 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span41 ft (12.5 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2022)
Projected traffic80 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local Road over Small Stream built?

It was built in 1966, making it 59 years old in 2025.

What condition is Local Road over Small Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2023.

How much traffic does Local Road over Small Stream carry?

About 80 vehicles per day (2022 count).

How long is Local Road over Small Stream?

The structure is 45 ft (13.7 m) long with a longest span of 41 ft (12.5 m) and a deck 20 ft wide.

Who owns Local Road over Small Stream?

It is owned by the County Highway Agency.