US Bridges

NE 47th Place over Drainage District #51

Fair

Polk County, Iowa · 079241461 · Structure no. 000000000363455

Built
1991
34 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
183
2023 count
Owner
County
County Highway Agency

About this bridge

NE 47th Place over Drainage District #51 is a concrete continuous culvert carrying NE 47th Place over Drainage District #51 in Polk 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 fair condition with a lowest component rating of 6 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 183 vehicles a day, projected to reach 183 by 2043. The structure is 25 ft (7.6 m) long and 22 ft wide.

Location

Open in Google Maps
CarriesNE 47th Place
CrossesDrainage District #51
Location079241461
RouteCounty Highway 0
CountyPolk County
StateIowa
Coordinates41.64694, -93.61441
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: 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 rating67.2 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic183 (2023)
Projected traffic183 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 NE 47th Place over Drainage District #51 built?

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

What condition is NE 47th Place over Drainage District #51 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 NE 47th Place over Drainage District #51 carry?

About 183 vehicles per day (2023 count).

How long is NE 47th Place over Drainage District #51?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 22 ft wide.

Who owns NE 47th Place over Drainage District #51?

It is owned by the County Highway Agency.