US Bridges

County Highway over S Ch Platte River

PoorPosted for load

Polk County, Nebraska · Ejct US81/N92 2W 11.6N · Structure no. C007204525

Built
1920
105 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
113 ft
4 main spans
Daily traffic
65
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over S Ch Platte River is a steel stringer/multi-beam or girder carrying County Highway over S Ch Platte River in Polk County, Nebraska. It was built in 1920, so it is 105 years old, older than the Nebraska average of 47.1 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 65 vehicles a day, projected to reach 110 by 2041. The structure is 113 ft (34.4 m) long and 21 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesCounty Highway
CrossesS Ch Platte River
LocationEjct US81/N92 2W 11.6N
RouteCounty Highway 45
Coordinates41.3597, -97.4068
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; extensive scour has occurred
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.9 US tons
Inventory rating18.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length113 ft (34.4 m)
Longest span28 ft (8.5 m)
Deck width21 ft (6.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2003)
Projected traffic110 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over S Ch Platte River built?

It was built in 1920, making it 105 years old in 2025.

What condition is County Highway over S Ch Platte 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 November 2024.

How much traffic does County Highway over S Ch Platte River carry?

About 65 vehicles per day (2003 count).

How long is County Highway over S Ch Platte River?

The structure is 113 ft (34.4 m) long with a longest span of 28 ft (8.5 m) and a deck 21 ft wide.

Who owns County Highway over S Ch Platte River?

It is owned by the County Highway Agency.