US Bridges

SH 39 over Mystic Crossing

Fair

Kerr County, Texas · 5.0 MI SW of FM 1340 · Structure no. 151330019302010

Built
1966
59 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
136 ft
9 main spans
Daily traffic
396
2020 count
Owner
State
State Highway Agency

About this bridge

SH 39 over Mystic Crossing is a concrete culvert carrying SH 39 over Mystic Crossing in Kerr County, Texas. It was built in 1966, so it is 59 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.

It carries about 396 vehicles a day, roughly 12% of them trucks, projected to reach 410 by 2033. The structure is 136 ft (41.5 m) long and 31 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesSH 39
CrossesMystic Crossing
Location5.0 MI SW of FM 1340
RouteState Highway 39
CountyKerr County
StateTexas
Coordinates30.01219, -99.37356
Functional classRural Major Collector

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadUnknown
Structure length136 ft (41.5 m)
Longest span10 ft (3 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic396 (2020)
Projected traffic410 by 2033
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 SH 39 over Mystic Crossing built?

It was built in 1966, making it 59 years old in 2025.

What condition is SH 39 over Mystic Crossing 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 June 2024.

How much traffic does SH 39 over Mystic Crossing carry?

About 396 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is SH 39 over Mystic Crossing?

The structure is 136 ft (41.5 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns SH 39 over Mystic Crossing?

It is owned by the State Highway Agency.