US Bridges

Local over North Skunk River

PoorPosted for load

Jasper County, Iowa · 080182601 · Structure no. 000000000197871

Built
1918
107 years old, rebuilt 1936
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
143 ft
4 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

Local over North Skunk River is a steel stringer/multi-beam or girder carrying Local over North Skunk River in Jasper County, Iowa. It was built in 1918 and reconstructed in 1936, so it is 107 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 25 vehicles a day, projected to reach 25 by 2043. The structure is 143 ft (43.6 m) long and 19 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal
CrossesNorth Skunk River
Location080182601
RouteCounty Highway 0
StateIowa
Coordinates41.71671, -92.92051
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating31.7 US tons
Inventory rating21.1 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans4
Design loadUnknown
Structure length143 ft (43.6 m)
Longest span42 ft (12.8 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2043
Trucks0%
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 Local over North Skunk River built?

It was built in 1918, making it 107 years old in 2025. It was reconstructed in 1936.

What condition is Local over North Skunk River 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 May 2023.

How much traffic does Local over North Skunk River carry?

About 25 vehicles per day (2022 count).

How long is Local over North Skunk River?

The structure is 143 ft (43.6 m) long with a longest span of 42 ft (12.8 m) and a deck 19 ft wide.

Who owns Local over North Skunk River?

It is owned by the County Highway Agency.