US Bridges

RM 1900 over Herman Creek

Good

Mason County, Texas · 3.70 MI N of SH 29 · Structure no. 141570317401003

Built
1969
56 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
39 ft
4 main spans
Daily traffic
101
2020 count
Owner
State
State Highway Agency

About this bridge

RM 1900 over Herman Creek is a concrete culvert carrying RM 1900 over Herman Creek in Mason County, Texas. It was built in 1969, so it is 56 years old, older 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 101 vehicles a day, roughly 18% of them trucks, projected to reach 100 by 2033. The structure is 39 ft (11.9 m) long and 29 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesRM 1900
CrossesHerman Creek
Location3.70 MI N of SH 29
RouteState Highway 1900
CountyMason County
StateTexas
Coordinates30.78541, -99.06087
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 length39 ft (11.9 m)
Longest span9 ft (2.7 m)
Deck width29 ft (8.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101 (2020)
Projected traffic100 by 2033
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 RM 1900 over Herman Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is RM 1900 over Herman 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 June 2023.

How much traffic does RM 1900 over Herman Creek carry?

About 101 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is RM 1900 over Herman Creek?

The structure is 39 ft (11.9 m) long with a longest span of 9 ft (2.7 m) and a deck 29 ft wide.

Who owns RM 1900 over Herman Creek?

It is owned by the State Highway Agency.