US Bridges

714 RD-646 / 647 a over Sardine Branch

PoorPosted for load

Richardson County, Nebraska · 1.5N Verdon (714-646/647) · Structure no. C007411430

Built
1935
90 years old
Condition
Poor
inspected July 2023
Type
Truss - Thru
Steel
Length
102 ft
1 main span
Daily traffic
10
2003 count
Owner
County
County Highway Agency

About this bridge

714 RD-646 / 647 a over Sardine Branch is a steel truss - thru carrying 714 RD-646 / 647 a over Sardine Branch in Richardson 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 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 10 vehicles a day, projected to reach 17 by 2033. The structure is 102 ft (31.1 m) long and 16 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

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Carries714 RD-646 / 647 a
CrossesSardine Branch
Location1.5N Verdon (714-646/647)
RouteCounty Highway 114
CountyRichardson County
StateNebraska
Coordinates40.1747, -95.702
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating16.5 US tons
Inventory rating9.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2003)
Projected traffic17 by 2033
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 714 RD-646 / 647 a over Sardine Branch built?

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

What condition is 714 RD-646 / 647 a over Sardine Branch 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 714 RD-646 / 647 a over Sardine Branch carry?

About 10 vehicles per day (2003 count).

How long is 714 RD-646 / 647 a over Sardine Branch?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 16 ft wide.

Who owns 714 RD-646 / 647 a over Sardine Branch?

It is owned by the County Highway Agency.