US Bridges

Needham Ave over Small Natural Stream

Poor

Sac County, Iowa · 087363106 · Structure no. 000000000046690

Built
1939
86 years old
Condition
Poor
inspected August 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,117
2022 count
Owner
County
County Highway Agency

About this bridge

Needham Ave over Small Natural Stream is a concrete continuous culvert carrying Needham Ave over Small Natural Stream in Sac County, Iowa. It was built in 1939, so it is 86 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.

It carries about 1,117 vehicles a day, roughly 17% of them trucks, projected to reach 1,117 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNeedham Ave
CrossesSmall Natural Stream
Location087363106
RouteCounty Highway 0
CountySac County
StateIowa
Coordinates42.30833, -95.09017
Functional classRural Major Collector

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
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.6 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 traffic1,117 (2022)
Projected traffic1,117 by 2043
Trucks17%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Needham Ave over Small Natural Stream built?

It was built in 1939, making it 86 years old in 2025.

What condition is Needham Ave over Small Natural 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 August 2023.

How much traffic does Needham Ave over Small Natural Stream carry?

About 1,117 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Needham Ave over Small Natural Stream?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Needham Ave over Small Natural Stream?

It is owned by the County Highway Agency.