US Bridges

N109 over Silver Creek

Fair

Saunders County, Nebraska · 2E Cedar Bluffs · Structure no. S109 01248

Built
1955
70 years old, rebuilt 1987
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
3,095
2018 count
Owner
State
State Highway Agency

About this bridge

N109 over Silver Creek is a concrete culvert carrying N109 over Silver Creek in Saunders County, Nebraska. It was built in 1955 and reconstructed in 1987, so it is 70 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 6 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 3,095 vehicles a day, roughly 7% of them trucks, projected to reach 4,178 by 2038. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesN109
CrossesSilver Creek
Location2E Cedar Bluffs
RouteState Highway 109
CountySaunders County
StateNebraska
Coordinates41.3934, -96.5765
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,095 (2018)
Projected traffic4,178 by 2038
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 N109 over Silver Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1987.

What condition is N109 over Silver Creek 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 N109 over Silver Creek carry?

About 3,095 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is N109 over Silver Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns N109 over Silver Creek?

It is owned by the State Highway Agency.