US Bridges

FM 880 over Post Oak Creek

Good

Callahan County, Texas · 2.65 MI W of SH 6 · Structure no. 080300048005032

Built
1989
36 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
100
2020 count
Owner
State
State Highway Agency

About this bridge

FM 880 over Post Oak Creek is a concrete culvert carrying FM 880 over Post Oak Creek in Callahan County, Texas. It was built in 1989, so it is 36 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 18% of them trucks, projected to reach 60 by 2033. The structure is 43 ft (13.1 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 880
CrossesPost Oak Creek
Location2.65 MI W of SH 6
RouteState Highway 880
StateTexas
Coordinates32.51436, -99.15899
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic60 by 2033
Trucks18%
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

OwnerState Highway Agency
Maintained byState 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 FM 880 over Post Oak Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is FM 880 over Post Oak Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does FM 880 over Post Oak Creek carry?

About 100 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is FM 880 over Post Oak Creek?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns FM 880 over Post Oak Creek?

It is owned by the State Highway Agency.