US Bridges

CR 270 over Mckinnon Branch

Fair

Colorado County, Texas · 1.45 MI E of FM 532 · Structure no. 130450AA0270002

Built
2020
5 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
17
2018 count
Owner
County
County Highway Agency

About this bridge

CR 270 over Mckinnon Branch is a steel stringer/multi-beam or girder carrying CR 270 over Mckinnon Branch in Colorado County, Texas. It was built in 2020, so it is 5 years old, younger 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 17 vehicles a day, roughly 3% of them trucks, projected to reach 24 by 2038. The structure is 58 ft (17.7 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 270
CrossesMckinnon Branch
Location1.45 MI E of FM 532
RouteCounty Highway 270
CountyColorado County
StateTexas
Coordinates29.59363, -96.81298
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length58 ft (17.7 m)
Longest span57 ft (17.4 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17 (2018)
Projected traffic24 by 2038
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 270 over Mckinnon Branch built?

It was built in 2020, making it 5 years old in 2025.

What condition is CR 270 over Mckinnon 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 April 2024.

How much traffic does CR 270 over Mckinnon Branch carry?

About 17 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is CR 270 over Mckinnon Branch?

The structure is 58 ft (17.7 m) long with a longest span of 57 ft (17.4 m) and a deck 29 ft wide.

Who owns CR 270 over Mckinnon Branch?

It is owned by the County Highway Agency.