US Bridges

IRR/N9 over Logan Creek

Fair

Thurston County, Nebraska · 10S Emerson · Structure no. S009 01952

Built
1989
36 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
326 ft
3 main spans
Daily traffic
1,820
2018 count
Owner
State
State Highway Agency

About this bridge

IRR/N9 over Logan Creek is a steel continuous stringer/multi-beam or girder carrying IRR/N9 over Logan Creek in Thurston County, Nebraska. It was built in 1989, so it is 36 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 6 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 1,820 vehicles a day, roughly 14% of them trucks, projected to reach 2,730 by 2038. The structure is 326 ft (99.4 m) long and 42 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesIRR/N9
CrossesLogan Creek
Location10S Emerson
RouteState Highway 9
CountyThurston County
StateNebraska
Coordinates42.136, -96.7272
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length326 ft (99.4 m)
Longest span124 ft (37.8 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,820 (2018)
Projected traffic2,730 by 2038
Trucks14%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR/N9 over Logan Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is IRR/N9 over Logan 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 September 2024.

How much traffic does IRR/N9 over Logan Creek carry?

About 1,820 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is IRR/N9 over Logan Creek?

The structure is 326 ft (99.4 m) long with a longest span of 124 ft (37.8 m) and a deck 42 ft wide.

Who owns IRR/N9 over Logan Creek?

It is owned by the State Highway Agency.