US Bridges

CR Mm over Tierra Blanca Creek

FairPosted for load

Deaf Smith County, Texas · 5.6 MI W of FM 1057 · Structure no. 040590AA0114001

Built
1950
75 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
40 ft
2 main spans
Daily traffic
7
2020 count
Owner
County
County Highway Agency

About this bridge

CR Mm over Tierra Blanca Creek is a steel continuous stringer/multi-beam or girder carrying CR Mm over Tierra Blanca Creek in Deaf Smith County, Texas. It was built in 1950, so it is 75 years old, older than the Texas average of 44.4 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 7 vehicles a day, roughly 3% of them trucks, projected to reach 65 by 2027. The structure is 40 ft (12.2 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR Mm
CrossesTierra Blanca Creek
Location5.6 MI W of FM 1057
RouteCounty Highway 0
CountyDeaf Smith County
StateTexas
Coordinates34.77373, -102.60279
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7 (2020)
Projected traffic65 by 2027
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 CR Mm over Tierra Blanca Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is CR Mm over Tierra Blanca 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 CR Mm over Tierra Blanca Creek carry?

About 7 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is CR Mm over Tierra Blanca Creek?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 20 ft wide.

Who owns CR Mm over Tierra Blanca Creek?

It is owned by the County Highway Agency.