US Bridges

Irwin RD over East Amarillo Creek

PoorPosted for load

Potter County, Texas · 0.3 MI N of Loop 335 · Structure no. 041880B02815001

Built
1964
61 years old
Condition
Poor
inspected September 2024
Type
Culvert
Steel
Length
38 ft
3 main spans
Daily traffic
168
2020 count
Owner
County
County Highway Agency

About this bridge

Irwin RD over East Amarillo Creek is a steel culvert carrying Irwin RD over East Amarillo Creek in Potter County, Texas. It was built in 1964, so it is 61 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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 168 vehicles a day, projected to reach 120 by 2027. The structure is 38 ft (11.6 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesIrwin RD
CrossesEast Amarillo Creek
Location0.3 MI N of Loop 335
RouteCity Street 0
CountyPotter County
StateTexas
Coordinates35.27125, -101.82654
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span11 ft (3.4 m)
Deck width54 ft (16.6 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic168 (2020)
Projected traffic120 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Irwin RD over East Amarillo Creek built?

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

What condition is Irwin RD over East Amarillo Creek 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 September 2024.

How much traffic does Irwin RD over East Amarillo Creek carry?

About 168 vehicles per day (2020 count).

How long is Irwin RD over East Amarillo Creek?

The structure is 38 ft (11.6 m) long with a longest span of 11 ft (3.4 m) and a deck 54 ft wide.

Who owns Irwin RD over East Amarillo Creek?

It is owned by the County Highway Agency.