US Bridges

Co. Road 400th St. over Trib Looking Glass Crk

FairPosted for load

Platte County, Nebraska · 4.5S 4W of Lindsay · Structure no. C007101805

Built
1935
90 years old, rebuilt 1981
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
33 ft
1 main span
Daily traffic
10
2003 count
Owner
County
County Highway Agency

About this bridge

Co. Road 400th St. over Trib Looking Glass Crk is a wood or timber stringer/multi-beam or girder carrying Co. Road 400th St. over Trib Looking Glass Crk in Platte County, Nebraska. It was built in 1935 and reconstructed in 1981, so it is 90 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 14 by 2033. The structure is 33 ft (10.1 m) long and 16 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesCo. Road 400th St.
CrossesTrib Looking Glass Crk
Location4.5S 4W of Lindsay
RouteCounty Highway 18
Coordinates41.6266, -97.7722
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32 US tons
Inventory rating23.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2003)
Projected traffic14 by 2033
Trucks0%
Lanes on structure1
Traffic directionOne-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 Co. Road 400th St. over Trib Looking Glass Crk built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1981.

What condition is Co. Road 400th St. over Trib Looking Glass Crk 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 June 2024.

How much traffic does Co. Road 400th St. over Trib Looking Glass Crk carry?

About 10 vehicles per day (2003 count).

How long is Co. Road 400th St. over Trib Looking Glass Crk?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns Co. Road 400th St. over Trib Looking Glass Crk?

It is owned by the County Highway Agency.