US Bridges

Coll 7915 over Stream

Poor

Otoe County, Nebraska · 2.5W 3.5S Palmyra · Structure no. C006600330

Built
1935
90 years old, rebuilt 1980
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
31 ft
2 main spans
Daily traffic
75
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7915 over Stream is a wood or timber stringer/multi-beam or girder carrying Coll 7915 over Stream in Otoe County, Nebraska. It was built in 1935 and reconstructed in 1980, 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 3 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: open, temporary structure in place while original is closed.

It carries about 75 vehicles a day, projected to reach 75 by 2033. The structure is 31 ft (9.4 m) long and 16 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesColl 7915
CrossesStream
Location2.5W 3.5S Palmyra
RouteCounty Highway 7915
Coordinates40.6521, -96.4448
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, temporary structure in place while original is closed
ScourScour critical; bridge has failed and is closed
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span19 ft (5.8 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (1998)
Projected traffic75 by 2033
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Coll 7915 over Stream built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1980.

What condition is Coll 7915 over Stream 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 Coll 7915 over Stream carry?

About 75 vehicles per day (1998 count).

How long is Coll 7915 over Stream?

The structure is 31 ft (9.4 m) long with a longest span of 19 ft (5.8 m) and a deck 16 ft wide.

Who owns Coll 7915 over Stream?

It is owned by the County Highway Agency.