US Bridges

N Seneca Avenue over Cambria Creek

FairPosted for load

Weston County, Wyoming · Newcastle Streets · Structure no. DYB

Built
1964
61 years old
Condition
Fair
inspected November 2024
Type
Channel Beam
Concrete
Length
81 ft
3 main spans
Daily traffic
437
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Seneca Avenue over Cambria Creek is a concrete channel beam carrying N Seneca Avenue over Cambria Creek in Weston County, Wyoming. It was built in 1964, so it is 61 years old, older than the Wyoming average of 48.4 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. Its operating status is: posted for load restriction.

It carries about 437 vehicles a day, roughly 3% of them trucks, projected to reach 612 by 2043. The structure is 81 ft (24.7 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN Seneca Avenue
CrossesCambria Creek
LocationNewcastle Streets
RouteCity Street 325-1
StateWyoming
Coordinates43.85658, -104.20576
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.3 US tons
Inventory rating33.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span30 ft (9.1 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic437 (2024)
Projected traffic612 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$52,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N Seneca Avenue over Cambria Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is N Seneca Avenue over Cambria 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 November 2024.

How much traffic does N Seneca Avenue over Cambria Creek carry?

About 437 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is N Seneca Avenue over Cambria Creek?

The structure is 81 ft (24.7 m) long with a longest span of 30 ft (9.1 m) and a deck 29 ft wide.

Who owns N Seneca Avenue over Cambria Creek?

It is owned by the City or Municipal Highway Agency.