US Bridges

US 180 over Mill Branch

Fair

Palo Pinto County, Texas · 2.1 MI E of FM919 ONUS180 · Structure no. 021820000710070

Built
1955
70 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
1,526
2020 count
Owner
State
State Highway Agency

About this bridge

US 180 over Mill Branch is a concrete culvert carrying US 180 over Mill Branch in Palo Pinto County, Texas. It was built in 1955, so it is 70 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,526 vehicles a day, roughly 15% of them trucks, projected to reach 2,100 by 2037. The structure is 30 ft (9.1 m) long and 103 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesUS 180
CrossesMill Branch
Location2.1 MI E of FM919 ONUS180
RouteU.S. Route 180
StateTexas
Coordinates32.75091, -98.34094
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadOther
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width103 ft (31.4 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,526 (2020)
Projected traffic2,100 by 2037
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 180 over Mill Branch built?

It was built in 1955, making it 70 years old in 2025.

What condition is US 180 over Mill Branch 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 March 2023.

How much traffic does US 180 over Mill Branch carry?

About 1,526 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is US 180 over Mill Branch?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m) and a deck 103 ft wide.

Who owns US 180 over Mill Branch?

It is owned by the State Highway Agency.