US Bridges

638 Ave over Rock Creek Trib

Good

Nemaha County, Nebraska · Njct US75/N67 2.2N · Structure no. S075 03588

Built
2003
22 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
4,640
2006 count
Owner
County
County Highway Agency

About this bridge

638 Ave over Rock Creek Trib is a concrete culvert carrying 638 Ave over Rock Creek Trib in Nemaha County, Nebraska. It was built in 2003, so it is 22 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,640 vehicles a day, roughly 16% of them trucks, projected to reach 7,424 by 2033. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 18.6 mi (30 km).

Carries638 Ave
CrossesRock Creek Trib
LocationNjct US75/N67 2.2N
RouteCounty Highway 323
Coordinates40.4996, -95.8588
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 spans3
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,640 (2006)
Projected traffic7,424 by 2033
Trucks16%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 638 Ave over Rock Creek Trib built?

It was built in 2003, making it 22 years old in 2025.

What condition is 638 Ave over Rock Creek Trib in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2021.

How much traffic does 638 Ave over Rock Creek Trib carry?

About 4,640 vehicles per day (2006 count), of which roughly 16% are trucks.

How long is 638 Ave over Rock Creek Trib?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns 638 Ave over Rock Creek Trib?

It is owned by the County Highway Agency.