US Bridges

N84 over Norwegian Bow Creek Trib

Fair

Knox County, Nebraska · 9E Bloomfield · Structure no. S084 03063

Built
1983
42 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
39 ft
4 main spans
Daily traffic
1,205
2018 count
Owner
State
State Highway Agency

About this bridge

N84 over Norwegian Bow Creek Trib is a concrete culvert carrying N84 over Norwegian Bow Creek Trib in Knox County, Nebraska. It was built in 1983, so it is 42 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 1,205 vehicles a day, roughly 12% of them trucks, projected to reach 1,747 by 2038. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN84
CrossesNorwegian Bow Creek Trib
Location9E Bloomfield
RouteState Highway 84
Coordinates42.6127, -97.4928
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,205 (2018)
Projected traffic1,747 by 2038
Trucks12%
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 N84 over Norwegian Bow Creek Trib built?

It was built in 1983, making it 42 years old in 2025.

What condition is N84 over Norwegian Bow Creek Trib 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 2024.

How much traffic does N84 over Norwegian Bow Creek Trib carry?

About 1,205 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is N84 over Norwegian Bow Creek Trib?

The structure is 39 ft (11.9 m) long with a longest span of 9 ft (2.7 m).

Who owns N84 over Norwegian Bow Creek Trib?

It is owned by the State Highway Agency.