US Bridges

FM C-43 over Broken Kettle Creek

PoorPosted for load

Plymouth County, Iowa · 091482205 · Structure no. 000000000273830

Built
1960
65 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
150 ft
3 main spans
Daily traffic
159
2022 count
Owner
County
County Highway Agency

About this bridge

FM C-43 over Broken Kettle Creek is a steel continuous stringer/multi-beam or girder carrying FM C-43 over Broken Kettle Creek in Plymouth County, Iowa. It was built in 1960, so it is 65 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. Its operating status is: posted for load restriction.

It carries about 159 vehicles a day, roughly 22% of them trucks, projected to reach 159 by 2044. The structure is 150 ft (45.7 m) long and 26 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesFM C-43
CrossesBroken Kettle Creek
Location091482205
RouteCounty Highway 0
StateIowa
Coordinates42.68547, -96.4935
Functional classRural Minor 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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.9 US tons
Inventory rating20.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length150 ft (45.7 m)
Longest span59 ft (18 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic159 (2022)
Projected traffic159 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM C-43 over Broken Kettle Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is FM C-43 over Broken Kettle 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 June 2024.

How much traffic does FM C-43 over Broken Kettle Creek carry?

About 159 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is FM C-43 over Broken Kettle Creek?

The structure is 150 ft (45.7 m) long with a longest span of 59 ft (18 m) and a deck 26 ft wide.

Who owns FM C-43 over Broken Kettle Creek?

It is owned by the County Highway Agency.