US Bridges

NE 27th Ave over Mud Creek

Fair

Polk County, Iowa · 079222803 · Structure no. 000000000281100

Built
1936
89 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
38 ft
1 main span
Daily traffic
264
2023 count
Owner
County
County Highway Agency

About this bridge

NE 27th Ave over Mud Creek is a concrete tee beam carrying NE 27th Ave over Mud Creek in Polk County, Iowa. It was built in 1936, so it is 89 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 264 vehicles a day, roughly 6% of them trucks, projected to reach 264 by 2044. The structure is 38 ft (11.6 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNE 27th Ave
CrossesMud Creek
Location079222803
RouteCounty Highway 0
StateIowa
Coordinates41.61931, -93.41984
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.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic264 (2023)
Projected traffic264 by 2044
Trucks6%
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 27th Ave over Mud Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is NE 27th Ave over Mud 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 September 2024.

How much traffic does NE 27th Ave over Mud Creek carry?

About 264 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is NE 27th Ave over Mud Creek?

The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 20 ft wide.

Who owns NE 27th Ave over Mud Creek?

It is owned by the County Highway Agency.