US Bridges

US136 over Missouri River

Poor

Nemaha County, Nebraska · Ecl Brownville · Structure no. S136 24018

Built
1938
87 years old, rebuilt 2009
Condition
Poor
inspected November 2024
Type
Truss - Thru
Steel Continuous
Length
1,904 ft
2 main spans
Daily traffic
2,450
2018 count
Owner
State
State Highway Agency

About this bridge

US136 over Missouri River is a steel continuous truss - thru carrying US136 over Missouri River in Nemaha County, Nebraska. It was built in 1938 and reconstructed in 2009, so it is 87 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.

It carries about 2,450 vehicles a day, roughly 16% of them trucks, projected to reach 3,430 by 2038. The structure is 1,904 ft (580.3 m) long and 26 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesUS136
CrossesMissouri River
LocationEcl Brownville
RouteU.S. Route 136
Coordinates40.399, -95.652
Functional classRural Principal Arterial - Other

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
Deck7 GoodSome minor problems.
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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.6 US tons
Inventory rating19.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+8 approach)
Design loadH 20
Structure length1,904 ft (580.3 m)
Longest span420 ft (128 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (7 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic2,450 (2018)
Projected traffic3,430 by 2038
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US136 over Missouri River built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 2009.

What condition is US136 over Missouri River 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 November 2024.

How much traffic does US136 over Missouri River carry?

About 2,450 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is US136 over Missouri River?

The structure is 1,904 ft (580.3 m) long with a longest span of 420 ft (128 m) and a deck 26 ft wide.

Who owns US136 over Missouri River?

It is owned by the State Highway Agency.