US Bridges

CR 181 over Robertson Creek

PoorPosted for load

Nolan County, Texas · 5.10 MI N of FM 1170 · Structure no. 081770AA0181003

Built
1950
75 years old, rebuilt 1965
Condition
Poor
inspected March 2024
Type
Slab
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
22
2020 count
Owner
County
County Highway Agency

About this bridge

CR 181 over Robertson Creek is a concrete continuous slab carrying CR 181 over Robertson Creek in Nolan County, Texas. It was built in 1950 and reconstructed in 1965, 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 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 22 vehicles a day, roughly 3% of them trucks, projected to reach 50 by 2040. The structure is 33 ft (10.1 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCR 181
CrossesRobertson Creek
Location5.10 MI N of FM 1170
RouteCounty Highway 181
StateTexas
Coordinates32.1714, -100.35822
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to 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 rating23 US tons
Inventory rating18 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span18 ft (5.5 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22 (2020)
Projected traffic50 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$6,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 181 over Robertson Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1965.

What condition is CR 181 over Robertson 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 March 2024.

How much traffic does CR 181 over Robertson Creek carry?

About 22 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is CR 181 over Robertson Creek?

The structure is 33 ft (10.1 m) long with a longest span of 18 ft (5.5 m) and a deck 26 ft wide.

Who owns CR 181 over Robertson Creek?

It is owned by the County Highway Agency.