US Bridges

Local Road over Mud Creek

PoorPosted for load

Polk County, Iowa · 078222706 · Structure no. 000000000280770

Built
1913
112 years old
Condition
Poor
inspected April 2024
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
79
2022 count
Owner
County
County Highway Agency

About this bridge

Local Road over Mud Creek is a concrete slab carrying Local Road over Mud Creek in Polk County, Iowa. It was built in 1913, so it is 112 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 3 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 79 vehicles a day, projected to reach 79 by 2044. The structure is 39 ft (11.9 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLocal Road
CrossesMud Creek
Location078222706
RouteCounty Highway 0
StateIowa
Coordinates41.52445, -93.37363
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating18.2 US tons
Inventory rating13.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79 (2022)
Projected traffic79 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
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 Mud Creek built?

It was built in 1913, making it 112 years old in 2025.

What condition is Local Road over Mud Creek 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 April 2024.

How much traffic does Local Road over Mud Creek carry?

About 79 vehicles per day (2022 count).

How long is Local Road over Mud Creek?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 20 ft wide.

Who owns Local Road over Mud Creek?

It is owned by the County Highway Agency.