US Bridges

635 BL-711R / 712T over N Fk Big Nemaha River TR

PoorPosted for load

Richardson County, Nebraska · 1.5E.7S H(635B-711R/712T) · Structure no. C007411115P

Built
1935
90 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
44 ft
3 main spans
Daily traffic
90
2022 count
Owner
County
County Highway Agency

About this bridge

635 BL-711R / 712T over N Fk Big Nemaha River TR is a wood or timber stringer/multi-beam or girder carrying 635 BL-711R / 712T over N Fk Big Nemaha River TR in Richardson County, Nebraska. It was built in 1935, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 90 vehicles a day, projected to reach 153 by 2041. The structure is 44 ft (13.4 m) long and 21 ft wide.

Carries635 BL-711R / 712T
CrossesN Fk Big Nemaha River TR
Location1.5E.7S H(635B-711R/712T)
RouteCounty Highway 7905
Coordinates40.1474, -95.9069
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating14.3 US tons
Inventory rating9.9 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span19 ft (5.8 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic153 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 635 BL-711R / 712T over N Fk Big Nemaha River TR built?

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

What condition is 635 BL-711R / 712T over N Fk Big Nemaha River TR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does 635 BL-711R / 712T over N Fk Big Nemaha River TR carry?

About 90 vehicles per day (2022 count).

How long is 635 BL-711R / 712T over N Fk Big Nemaha River TR?

The structure is 44 ft (13.4 m) long with a longest span of 19 ft (5.8 m) and a deck 21 ft wide.

Who owns 635 BL-711R / 712T over N Fk Big Nemaha River TR?

It is owned by the County Highway Agency.