US Bridges

N68 over Mud Creek

Fair

Buffalo County, Nebraska · Scl Ravenna · Structure no. S068 00017

Built
1979
46 years old
Condition
Fair
inspected August 2021
Type
Slab
Concrete Continuous
Length
121 ft
3 main spans
Daily traffic
2,695
2018 count
Owner
State
State Highway Agency

About this bridge

N68 over Mud Creek is a concrete continuous slab carrying N68 over Mud Creek in Buffalo County, Nebraska. It was built in 1979, so it is 46 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 2,695 vehicles a day, roughly 6% of them trucks, projected to reach 3,638 by 2038. The structure is 121 ft (36.9 m) long and 42 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN68
CrossesMud Creek
LocationScl Ravenna
RouteState Highway 68
Coordinates41.0196, -98.9128
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.7 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length121 ft (36.9 m)
Longest span48 ft (14.6 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,695 (2018)
Projected traffic3,638 by 2038
Trucks6%
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 N68 over Mud Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is N68 over Mud 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 August 2021.

How much traffic does N68 over Mud Creek carry?

About 2,695 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is N68 over Mud Creek?

The structure is 121 ft (36.9 m) long with a longest span of 48 ft (14.6 m) and a deck 42 ft wide.

Who owns N68 over Mud Creek?

It is owned by the State Highway Agency.