US Bridges

S 12th ST over M Br Big Nemaha R(w 104)

Fair

Lancaster County, Nebraska · 1S of Princeton · Structure no. C005502305

Built
1918
107 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
57
2012 count
Owner
County
County Highway Agency

About this bridge

S 12th ST over M Br Big Nemaha R(w 104) is a concrete slab carrying S 12th ST over M Br Big Nemaha R(w 104) in Lancaster County, Nebraska. It was built in 1918, so it is 107 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.

It carries about 57 vehicles a day, projected to reach 96 by 2042. The structure is 22 ft (6.7 m) long and 32 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesS 12th ST
CrossesM Br Big Nemaha R(w 104)
Location1S of Princeton
RouteCounty Highway 23
CountyLancaster County
StateNebraska
Coordinates40.5545, -96.7047
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40.8 US tons
Inventory rating24.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57 (2012)
Projected traffic96 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S 12th ST over M Br Big Nemaha R(w 104) built?

It was built in 1918, making it 107 years old in 2025.

What condition is S 12th ST over M Br Big Nemaha R(w 104) 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 April 2023.

How much traffic does S 12th ST over M Br Big Nemaha R(w 104) carry?

About 57 vehicles per day (2012 count).

How long is S 12th ST over M Br Big Nemaha R(w 104)?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 32 ft wide.

Who owns S 12th ST over M Br Big Nemaha R(w 104)?

It is owned by the County Highway Agency.