US Bridges

105th over Beaver Dam Creek

Fair

Cerro Gordo County, Iowa · 094203507 · Structure no. 000000000105370

Built
1959
66 years old
Condition
Fair
inspected March 2024
Type
Truss - Thru
Steel
Length
162 ft
2 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

105th over Beaver Dam Creek is a steel truss - thru carrying 105th over Beaver Dam Creek in Cerro Gordo County, Iowa. It was built in 1959, so it is 66 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 11 vehicles a day, projected to reach 11 by 2044. The structure is 162 ft (49.4 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries105th
CrossesBeaver Dam Creek
Location094203507
RouteCounty Highway 0
CountyCerro Gordo County
StateIowa
Coordinates42.91486, -93.16824
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
Deck7 GoodSome minor problems.
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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31 US tons
Inventory rating15 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length162 ft (49.4 m)
Longest span93 ft (28.3 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 105th over Beaver Dam Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is 105th over Beaver Dam 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 March 2024.

How much traffic does 105th over Beaver Dam Creek carry?

About 11 vehicles per day (2022 count).

How long is 105th over Beaver Dam Creek?

The structure is 162 ft (49.4 m) long with a longest span of 93 ft (28.3 m) and a deck 21 ft wide.

Who owns 105th over Beaver Dam Creek?

It is owned by the County Highway Agency.