US Bridges

County Highway over N Fk Big Nemaha River

PoorPosted for load

Johnson County, Nebraska · 3.5W 2.2N of Sterling · Structure no. C004940325

Built
1935
90 years old
Condition
Poor
inspected July 2023
Type
Truss - Thru
Steel
Length
95 ft
1 main span
Daily traffic
15
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over N Fk Big Nemaha River is a steel truss - thru carrying County Highway over N Fk Big Nemaha River in Johnson County, Nebraska. It was built in 1935, so it is 90 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 3 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 15 vehicles a day, projected to reach 25 by 2033. The structure is 95 ft (29 m) long and 16 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesCounty Highway
CrossesN Fk Big Nemaha River
Location3.5W 2.2N of Sterling
RouteCounty Highway 303
Coordinates40.4985, -96.4448
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating5.5 US tons
Inventory rating3.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadUnknown
Structure length95 ft (29 m)
Longest span60 ft (18.3 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2003)
Projected traffic25 by 2033
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 County Highway over N Fk Big Nemaha River built?

It was built in 1935, making it 90 years old in 2025.

What condition is County Highway over N Fk Big Nemaha 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 July 2023.

How much traffic does County Highway over N Fk Big Nemaha River carry?

About 15 vehicles per day (2003 count).

How long is County Highway over N Fk Big Nemaha River?

The structure is 95 ft (29 m) long with a longest span of 60 ft (18.3 m) and a deck 16 ft wide.

Who owns County Highway over N Fk Big Nemaha River?

It is owned by the County Highway Agency.