US Bridges

CO RD 105 over Elk Creek

Fair

Worth County, Iowa · 099220303 · Structure no. 000000000054110

Built
1926
99 years old, rebuilt 1949
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
1,139
2022 count
Owner
County
County Highway Agency

About this bridge

CO RD 105 over Elk Creek is a concrete slab carrying CO RD 105 over Elk Creek in Worth County, Iowa. It was built in 1926 and reconstructed in 1949, so it is 99 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 1,139 vehicles a day, projected to reach 1,139 by 2043. The structure is 26 ft (7.9 m) long and 46 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCO RD 105
CrossesElk Creek
Location099220303
RouteCounty Highway 0
StateIowa
Coordinates43.42269, -93.4295
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,139 (2022)
Projected traffic1,139 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 CO RD 105 over Elk Creek built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1949.

What condition is CO RD 105 over Elk 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 November 2023.

How much traffic does CO RD 105 over Elk Creek carry?

About 1,139 vehicles per day (2022 count).

How long is CO RD 105 over Elk Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 46 ft wide.

Who owns CO RD 105 over Elk Creek?

It is owned by the County Highway Agency.