US Bridges

Irr/Fas 3565 over Big Slough Creek

Fair

Thurston County, Nebraska · Sjct N9/16 7E 1.2N · Structure no. C008702505

Built
1999
26 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
65
2011 count
Owner
County
County Highway Agency

About this bridge

Irr/Fas 3565 over Big Slough Creek is a steel stringer/multi-beam or girder carrying Irr/Fas 3565 over Big Slough Creek in Thurston County, Nebraska. It was built in 1999, so it is 26 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 65 vehicles a day, projected to reach 65 by 2033. The structure is 50 ft (15.2 m) long and 29 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesIrr/Fas 3565
CrossesBig Slough Creek
LocationSjct N9/16 7E 1.2N
RouteCounty Highway 3565
CountyThurston County
StateNebraska
Coordinates42.1079, -96.59
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2011)
Projected traffic65 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-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 Irr/Fas 3565 over Big Slough Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Irr/Fas 3565 over Big Slough Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Irr/Fas 3565 over Big Slough Creek carry?

About 65 vehicles per day (2011 count).

How long is Irr/Fas 3565 over Big Slough Creek?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 29 ft wide.

Who owns Irr/Fas 3565 over Big Slough Creek?

It is owned by the County Highway Agency.