US Bridges

Irr/Fas 3560 over South Omaha Creek

PoorPosted for load

Thurston County, Nebraska · JCT US73/US77 .3N .3W · Structure no. C008720820

Built
1938
87 years old
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
96 ft
2 main spans
Daily traffic
195
2011 count
Owner
County
County Highway Agency

About this bridge

Irr/Fas 3560 over South Omaha Creek is a steel stringer/multi-beam or girder carrying Irr/Fas 3560 over South Omaha Creek in Thurston County, Nebraska. It was built in 1938, so it is 87 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 195 vehicles a day, projected to reach 195 by 2033. The structure is 96 ft (29.3 m) long and 27 ft wide. If it were closed, the detour would be 130.5 mi (210 km).

CarriesIrr/Fas 3560
CrossesSouth Omaha Creek
LocationJCT US73/US77 .3N .3W
RouteCounty Highway 3560
Coordinates42.2346, -96.4768
Functional classRural Major Collector

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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; extensive scour has occurred
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating18.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length96 ft (29.3 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic195 (2011)
Projected traffic195 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed130.5 mi (210 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 3560 over South Omaha Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is Irr/Fas 3560 over South Omaha 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 Irr/Fas 3560 over South Omaha Creek carry?

About 195 vehicles per day (2011 count).

How long is Irr/Fas 3560 over South Omaha Creek?

The structure is 96 ft (29.3 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns Irr/Fas 3560 over South Omaha Creek?

It is owned by the County Highway Agency.