US Bridges

Ui Cnty RD 233 over Porter Hollow

PoorPosted for load

Uinta County, Wyoming · 15 Mi. N.E. of Lyman · Structure no. FCQ

Built
1984
41 years old
Condition
Poor
inspected June 2024
Type
Other
Steel
Length
53 ft
1 main span
Daily traffic
42
2024 count
Owner
County
County Highway Agency

About this bridge

Ui Cnty RD 233 over Porter Hollow is a steel other carrying Ui Cnty RD 233 over Porter Hollow in Uinta County, Wyoming. It was built in 1984, so it is 41 years old, younger than the Wyoming average of 48.4 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: posted for load restriction.

It carries about 42 vehicles a day, roughly 14% of them trucks, projected to reach 59 by 2043. The structure is 53 ft (16.2 m) long and 24 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesUi Cnty RD 233
CrossesPorter Hollow
Location15 Mi. N.E. of Lyman
RouteCounty Highway 233
StateWyoming
Coordinates41.51052, -110.12877
Functional classRural Local

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: 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 rating18.4 US tons
Inventory rating11.2 US tons

Structure

Structure typeOther
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span52 ft (15.8 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2024)
Projected traffic59 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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$326,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ui Cnty RD 233 over Porter Hollow built?

It was built in 1984, making it 41 years old in 2025.

What condition is Ui Cnty RD 233 over Porter Hollow 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 June 2024.

How much traffic does Ui Cnty RD 233 over Porter Hollow carry?

About 42 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Ui Cnty RD 233 over Porter Hollow?

The structure is 53 ft (16.2 m) long with a longest span of 52 ft (15.8 m) and a deck 24 ft wide.

Who owns Ui Cnty RD 233 over Porter Hollow?

It is owned by the County Highway Agency.