US Bridges

Road 6600 over Big Sandy Creek

PoorPosted for load

Thayer County, Nebraska · 2.5E Belvidere · Structure no. C008523510

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

About this bridge

Road 6600 over Big Sandy Creek is a steel truss - thru carrying Road 6600 over Big Sandy Creek in Thayer 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 15 vehicles a day, projected to reach 20 by 2033. The structure is 81 ft (24.7 m) long and 18 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesRoad 6600
CrossesBig Sandy Creek
Location2.5E Belvidere
RouteCounty Highway 235
Coordinates40.2575, -97.5012
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.5 US tons
Inventory rating9.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span79 ft (24.1 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2003)
Projected traffic20 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-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 Road 6600 over Big Sandy Creek built?

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

What condition is Road 6600 over Big Sandy 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 November 2023.

How much traffic does Road 6600 over Big Sandy Creek carry?

About 15 vehicles per day (2003 count).

How long is Road 6600 over Big Sandy Creek?

The structure is 81 ft (24.7 m) long with a longest span of 79 ft (24.1 m) and a deck 18 ft wide.

Who owns Road 6600 over Big Sandy Creek?

It is owned by the County Highway Agency.