US Bridges

252nd RD over Elkhorn River Trib

Good

Douglas County, Nebraska · 1.2W 2.2N of Waterloo · Structure no. C002801720

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
34 ft
4 main spans
Daily traffic
1,055
2005 count
Owner
County
County Highway Agency

About this bridge

252nd RD over Elkhorn River Trib is a concrete culvert carrying 252nd RD over Elkhorn River Trib in Douglas County, Nebraska. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,055 vehicles a day, projected to reach 450 by 2033. The structure is 34 ft (10.4 m) long and 22 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Carries252nd RD
CrossesElkhorn River Trib
Location1.2W 2.2N of Waterloo
RouteCounty Highway 7947
Coordinates41.324, -96.311
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating59.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHL 93
Structure length34 ft (10.4 m)
Longest span8 ft (2.4 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,055 (2005)
Projected traffic450 by 2033
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 252nd RD over Elkhorn River Trib built?

It was built in 2020, making it 5 years old in 2025.

What condition is 252nd RD over Elkhorn River 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 October 2024.

How much traffic does 252nd RD over Elkhorn River Trib carry?

About 1,055 vehicles per day (2005 count).

How long is 252nd RD over Elkhorn River Trib?

The structure is 34 ft (10.4 m) long with a longest span of 8 ft (2.4 m) and a deck 22 ft wide.

Who owns 252nd RD over Elkhorn River Trib?

It is owned by the County Highway Agency.