US Bridges

NE Berwick DR over Muchinock Creek

Fair

Polk County, Iowa · 079230804 · Structure no. 000000000281230

Built
1967
58 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
761
2023 count
Owner
County
County Highway Agency

About this bridge

NE Berwick DR over Muchinock Creek is a steel stringer/multi-beam or girder carrying NE Berwick DR over Muchinock Creek in Polk County, Iowa. It was built in 1967, so it is 58 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 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 761 vehicles a day, roughly 2% of them trucks, projected to reach 761 by 2043. The structure is 42 ft (12.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNE Berwick DR
CrossesMuchinock Creek
Location079230804
RouteCounty Highway 0
CountyPolk County
StateIowa
Coordinates41.66707, -93.5461
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.2 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length42 ft (12.8 m)
Longest span42 ft (12.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic761 (2023)
Projected traffic761 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 NE Berwick DR over Muchinock Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is NE Berwick DR over Muchinock Creek 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 Berwick DR over Muchinock Creek carry?

About 761 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is NE Berwick DR over Muchinock Creek?

The structure is 42 ft (12.8 m) long with a longest span of 42 ft (12.8 m) and a deck 30 ft wide.

Who owns NE Berwick DR over Muchinock Creek?

It is owned by the County Highway Agency.