US Bridges

County Highway over Rock Creek

PoorClosed to traffic

Otoe County, Nebraska · 9S Nebraska City · Structure no. C006623650

Built
1935
90 years old
Condition
Poor
inspected October 2023
Type
Truss - Thru
Steel
Length
105 ft
1 main span
Daily traffic
35
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over Rock Creek is a steel truss - thru carrying County Highway over Rock Creek in Otoe 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 0 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: closed to all traffic.

It carries about 35 vehicles a day, projected to reach 59 by 2033. The structure is 105 ft (32 m) long and 16 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesRock Creek
Location9S Nebraska City
RouteCounty Highway 236
CountyOtoe County
StateNebraska
Coordinates40.5367, -95.8767
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.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry6: Equal to present minimum criteria
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 rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadUnknown
Structure length105 ft (32 m)
Longest span50 ft (15.2 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2003)
Projected traffic59 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 Rock Creek built?

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

What condition is County Highway over Rock Creek 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 October 2023.

How much traffic does County Highway over Rock Creek carry?

About 35 vehicles per day (2003 count).

How long is County Highway over Rock Creek?

The structure is 105 ft (32 m) long with a longest span of 50 ft (15.2 m) and a deck 16 ft wide.

Who owns County Highway over Rock Creek?

It is owned by the County Highway Agency.